52639 + Interview Questions in Secondary School in Chemistry

1.	How can you find an element group no. And period no.
Answer» HEY MATE, HERE IS YOUR ANSWER................... We already know that all the elements in periodic table are arranged serially according to their atomic numbers. There are 18 groups and 7 periods. The elements are arranged in such a WAY that the elements get categorized according to their properties. Here we will work with only basic 8 groups (I A,II A,III A,IV A,V A,VI A,VII A and 0) .In the periodic table the first group (except Hydrogen) consists of strong Alkali Metals, the second group consists of Alkaline Earth Metals. The right of the periodic table consists of the non-metallic elements including noble gas and metalloid. The VII A group is also known as the Halogen Family and its elements are known as halogens. All Noble Gases are in the group 0. All these elements are collectively known as Normal Representative Element. We have to keep certain things in mind (Not applicable for transition groups and its elements) 1. The period of element relates the number of shells of an atom of the given element. 2. The group is similar to the no of valence electrons of given element. 3. The valency is the no of electrons it accepts or donates. So in case of non-metals valency = 8-valence electrons & in case of metals valency=valence electrons... This is B’COZ non-metals accept so lacked electrons only considered 4. The number of element in each period is calculated by 2n2. => Steps to find the position of an non-transitional element in periodic 1. First take the Atomic number of the given element. Say Cl... Atomic no. 2. Then calculate the electronic configuration using the atomic number 2+8+7=17 therefore the electronic configuration will be 2, 8, 7. 3. Here we find that the no of valence electrons of element is 7 as the valence shell has 7 electrons. 4. So know we easily understand that the group is 7 because the no of valence electrons is 7. 5. Now to find the period we have to understand that the period is the number of shell the element is having therefore here chlorine has 3 shells (K-2, L-8, and M-7). So the period of the given element is 3. Thus the position of the given element (here chlorine) is ….. Group VII A (17th) =>B’COZ VALENCE ELECTRONS = 7 Period 3rd =>B’COZ NO OF SHELLS = 3 NB: Valency 8 refers to the group 0 and the element must be a Noble Gas. Like this we can find the position of any non-transitional element. Now to find the Properties we have to see that where the element is located at the periodic table. We have already found it. So now LET us see in which group it is at. Here chlorine is taken as example so chlorine is located at VII A group. Now as it is in VII A group we can understand that it’s a non-metal. It can also be concluded that the element belongs to Halogen Family and is a halogen. From here also we could see valency=8-7=1(chlorine is a non-metal, it can accept only one electron). Thus all basic properties are found. Therefore, we can find the position of an element in periodic table and also the properties like this. The only thing we have to MEMORIZE is the Atomic number. HOPE IT HELPS YOU........ &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& THANKS ... MARK IT BRAINLIEST PLZ IF IT HELPS YOU...

1.

How can you find an element group no. And period no.

Answer»

HEY MATE,

HERE IS YOUR ANSWER...................

We already know that all the elements in periodic table are arranged serially according to their atomic numbers. There are 18 groups and 7 periods. The elements are arranged in such a WAY that the elements get categorized according to their properties.

Here we will work with only basic 8 groups (I A,II A,III A,IV A,V A,VI A,VII A and 0) .In the periodic table the first group (except Hydrogen) consists of strong Alkali Metals, the second group consists of Alkaline Earth Metals. The right of the periodic table consists of the non-metallic elements including noble gas and metalloid. The VII A group is also known as the Halogen Family and its elements are known as halogens. All Noble Gases are in the group 0. All these elements are collectively known as Normal Representative Element.

We have to keep certain things in mind (Not applicable for transition groups and its elements)

1. The period of element relates the number of shells of an atom of the given element.

2. The group is similar to the no of valence electrons of given element.

3. The valency is the no of electrons it accepts or donates. So in case of non-metals valency = 8-valence electrons & in case of metals valency=valence electrons... This is B’COZ non-metals accept so lacked electrons only considered

4. The number of element in each period is calculated by 2n2.

=> Steps to find the position of an non-transitional element in periodic

1. First take the Atomic number of the given element. Say Cl... Atomic no.

2. Then calculate the electronic configuration using the atomic number 2+8+7=17 therefore the electronic configuration will be 2, 8, 7.

3. Here we find that the no of valence electrons of element is 7 as the valence shell has 7 electrons.

4. So know we easily understand that the group is 7 because the no of valence electrons is 7.

5. Now to find the period we have to understand that the period is the number of shell the element is having therefore here chlorine has 3 shells (K-2, L-8, and M-7). So the period of the given element is 3.

Thus the position of the given element (here chlorine) is …..

Group VII A (17th)

=>B’COZ VALENCE ELECTRONS = 7

Period 3rd

=>B’COZ NO OF SHELLS = 3

NB: Valency 8 refers to the group 0 and the element must be a Noble Gas.

Like this we can find the position of any non-transitional element. Now to find the Properties we have to see that where the element is located at the periodic table. We have already found it. So now LET us see in which group it is at. Here chlorine is taken as example so chlorine is located at VII A group. Now as it is in VII A group we can understand that it’s a non-metal. It can also be concluded that the element belongs to Halogen Family and is a halogen. From here also we could see valency=8-7=1(chlorine is a non-metal, it can accept only one electron). Thus all basic properties are found.

Therefore, we can find the position of an element in periodic table and also the properties like this. The only thing we have to MEMORIZE is the Atomic number.

HOPE IT HELPS YOU........

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&

THANKS ...

MARK IT BRAINLIEST PLZ IF IT HELPS YOU...

Discussion

2.	An organic compound has the molecular c=40% ,h=6.6%and the rest is oxygen .The vapour density ii 15.What would be the molecular formula of the compound.
Answer» /What+would+be+the+molecular+FORMULA+of+the\| Socratic The empirical formula is the simplest WHOLE number ratio between the elements in the compound. The molecular formula is the actual whole number ratio between the elements in the compound. EXAMPLE: A compound with a molecular mass of 180.18 u contains 40.00% CARBON, 6.72% HYDROGEN, and 53.28% oxygen.

Discussion

3.	what is the element having atomic number 119? Don't spam..... Perfect answer will be marked brainliest....
Answer» HEY, UNUNENNIUM is the ELEMENT having ATOMIC number 119 . Also known as eka-francium. HOPE THIS HELPS YOU HAVE A GREAT DAY ******************************* PLEASE MARK AS BRAINLIEST........!!!!

3.

what is the element having atomic number 119? Don't spam..... Perfect answer will be marked brainliest....

Answer»

HEY,

UNUNENNIUM is the ELEMENT having ATOMIC number 119 . Also known as eka-francium.

HOPE THIS HELPS YOU

HAVE A GREAT DAY

*******************************

PLEASE MARK AS BRAINLIEST........!!!!

Discussion

4.	Does elements having same VALENCY show same chemical properties?
Answer» No because its ATOMIC is so DIFFERENT

Discussion

5.	Best example of displacement reaction.
Answer» The simple metal with acid reactions are single DISPLACEMENT reactions. For example , the REACTION between magnesium , and hydrochloride acid , forms magnesium chloride , and hydrogen. HOPE it HELP you

Discussion

6.	Equilibrium constant depends on changes in
Answer» EQUILIBRIUM CONSTANT DEPENDS on CHANGES in TEMPERATURE.

Discussion

7.	in naphthalene, how many resonating structures are there with their types. And find that t c-c bond is same or different
Answer» NAPHTHALENE has THREE RESONATING STRUCTURES.

Discussion

8.	How many isomers of pentane exists?
Answer» I THINK...Two isomers of pentene EXISTS.. 1. ISOPENTANE ( methylbutane ) 2. Neopentane ( dimethylpropen ) HOPE it will help you... : )

Discussion

9.	State the properties of copper wire that make them useful for Electrical fitting
Answer» COPPER is an excellent CONDUCTOR of electricity so it is useful for ELECTRICAL fitting. hope it HELPED you!

9.

State the properties of copper wire that make them useful for Electrical fitting

Answer»

COPPER is an excellent CONDUCTOR of electricity so it is useful for ELECTRICAL fitting.

hope it HELPED you!

Discussion

10.	Differenciate between ionic solid, covalent solid and molecular solid
Answer» A molecular solid is a solid that is made of NONPOLAR compounds. The molecules are held by INTERMOLECULAR FORCES, specifically London Dispersion Force. ... A covalent network solid is held by covalent bonds, meaning that the atoms, not molecules, are sharing ELECTRONS

Discussion

11.	List the features of valence shell pair theory
Answer» VSEPR THEORY is based on observable electron density rather than mathematical wave functions and hence unrelated to orbital hybridisation, although both address MOLECULAR shape. While it is mainly QUALITATIVE, VSEPR has a quantitative basis in quantum chemical topology (QCT) methods such as the electron LOCALIZATION function (ELF) and the quantum theory of atoms in molecules

Discussion

12.	Can u please type this following formula equation in word please it urgent I will 25 points
Answer» 2-sodium sulphonate benzyl-4,6,8-tri METHYLNONANE.........i am not SURE it MAY be........

Discussion

13.	State the formula of the conjugate base of nh3
Answer» NH4 POSITIVE is the answer hope U LIKEIT

Discussion

14.	Which strochiometric defect increase the density of a solid
Answer» VACANCY strachiometric DEFECT INCREASE the DENSITY of solid. Hope it will HELP you.. : )

Discussion

15.	...........how does electronagitivity vary in a period and in a group??.............
Answer» In a PERIOD electronegativity GOES on INCREASING while in that of GROUP the electronegativity goes on decreasing

Discussion

16.	What is hydrogenation?
Answer» Hydrogenation – meaning, to treat with hydrogen – is a chemical reaction between molecular hydrogen and another compound or ELEMENT, USUALLY in the presence of a catalyst such as nickel, palladium or platinum. The PROCESS is COMMONLY employed to reduce or saturate organic COMPOUNDS

Discussion

17.	Formation of clouds is a physical change. Justify.
Answer» $\text{[math]}$ $\huge\boxed{Hey there !}$ ☢Clouds are formed after the water when earth EVAPORATES, goes up in the sky and condenses. ☢Again the cloud changes to water and FALL on earth in the form of RAIN DUE to the process of precipitation. ☢This is a cyclic process, and it will be continues. ☢Therefore, the formation of clouds is a physical change. $Hope it helps you !✌✌$

Discussion

18.	What do u mean by adsorbant
Answer» Adsorbent in Chemical Engineering. ...ADSORBENTS are porous solids which bind LIQUID or gaseous molecules to their surface. An adsorbent is a SOLID SUBSTANCE used to COLLECT solute molecules from a liquid or gas.

Discussion

19.	Iupac name of this combination of compund
Answer» The ANSWER is 2-Methyl propane hope it HELPS!?

Discussion

20.	What will be the volume occupied by 10 g of oxygen at 25 degree celcius and 650 mm hg pressure
Answer» Applying the general GAS equation PV = nRT = m/M RT Here, MOL. WT. of ACETYLENE i.e., C2H2 (M) = 26, P = 740/760 atm, T = 50oC = 50 + 273 = 323 K ∴ V = mRT/MP or V 5 * 0.082 323 760/26 *740 = 5.23 l

Discussion

21.	what will be the volume occupied by 10 g of oxygen at 25 degree celcius and 600 ml volume at 27 degree celcius
Answer» ACCORDING to ideal gas equation PV=nRT P=pressure of gas,V=volume of gas=volume of container, T=temperaturue V1 =INITIAL VOLUME ,V2 =FINAL VOLUME T1 =INITIAL TEMPERATURE =27+273=300 T2 =FINAL TEMPERATURE According to question, V2 =2 x V1 Therefore, V1/V2 = T1/T2 V1/2V1=300/T2 T2 =FINAL TEMPERATURE=600K

Discussion

22.	W why ac current is used for measuring the resistance of the electrolytic solution
Answer» Alternating CURRENT is used because it can be CONTROLLED and as it cannot be stored when the power supply is cut then there will be no current thus not electrocuting everyone who touches the ANODE or CATHODE

Discussion

23.	Amount of oxygen in the atmosphere remains relatively constant because it is given off by
Answer» PLANTS and all PHOTOAUTOTROPHS ORGANISMS

Discussion

24.	Self-assembly of magnetic iron oxide nanoparticles into cuboidal superstructures
Answer» Self assembly of magnetic IRON oxide nanoparticles into CUBOIDAL superstructures. This describes the synthesis and some CHARACTERISTICS of magnetic iron oxide nanoparticles mainly nanocubes and focus on their self assembly into crystalline cuboids in DISPERSION.

Discussion

25.	The statue of unity is the statue of which Indian freedom fighter ?
Answer» SARDAR VALLABH BHAI PATEL...

Discussion

26.	Why is acidified kmno4 stronger oxidising agent than alkaline kmno4
Answer» HMM OH, I THOUGHT alkaline potassium PERMANGANATE was more stronger

Discussion

27.	E) determine the expected cell potential of the cobalt-silver cell?
Answer» Consider a COBALT-silver voltaic cell that is constructed such that one half-cell consists of the cobalt, Co, electrode immersed in a Co(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two electrodes are connected by a COPPER wire. The Co electrode acts as the anode, and the Ag electrode acts as the cathode. To maintain electric neutrality, you add a KNO3 salt bridge separating the two half-cells. Use this information to SOLVE Parts B, C, and D. A. The half-cell is a CHAMBER in the voltaic cell where one half-cell is the site of the oxidation reaction and the other half-cell is the site of the reduction reaction. Type the half-cell reaction that takes PLACE at the anode for the cobalt-silver voltaic cell. Indicate the physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget to add electrons in your reaction. B. The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction. Type the half-cell reaction that takes place at the cathode for the cobalt-silver voltaic cell. Indicate physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget to add electrons in your reaction.

Discussion

28.	Structure of C3H6O2..............
Answer» MOLECULAR FORMULA should be C3H6O2 IUPAC NAME is PROPANOIC ACID .....

Discussion

29.	Effect the following conversionEthanol to isopropyl alcohol
Answer» Dear Student, Isopropyl ALCOHOL can be prepared by OXIDISING ETHANOL to ACETALDEHYDE. Acetaldehyde on treating with Grignard's reagent gives isoproyl alcohol.

Discussion

30.	Why ion present in gaseous state is less stabe rhan ion in gaseous stae?
Answer» SOLIDS, LIQUIDS and GASES. ... In the solid state , the IONS or MOLECULES do not translate; that is, they move ... exist in the solid state, whereas others exist in the liquid or gaseous ..... HOPE I RIGHT. . RIGHT THEN PLEASE MAKE BRINDLIST. .

Discussion

31.	Why does atomic size decrease from na to cl when we move third period of the periodic table?
Answer» Because more the ELECTRON the GREATER will be the FORCE of ATTRACTION between electron and PROTONS and smaller will be the size of the atom

Discussion

32.	Find the structure of C2H6O...........its urgent........
Answer» C2H6O = C2H5OH ( ethanol) C2H6O is Ethanol/ETHYL alcohol FUNCTIONAL group: Alcohol Common name: Ethanol IUPAC name: Ethyl alcohol STRUCTURE: CH3-CH2-OH

Discussion

33.	Why to we feel heat when we push our hand into a sack of wheat?
Answer» Because of FORCE BHAI.

Discussion

34.	Why more heat is required in constant pressure as compared to constant volume?
Answer» HENCE more amount of energy has to be supplied to a constant pressure process to INCREASE the SYSTEM's temperature by the same amount, because some of this energy is lost due to expansion work done by the system. Hence the specific heat at constant pressure always EXCEEDS the specific heat at constant volume

Discussion

35.	If a molecule AB3 has zero dipole moment, the sigma bonding orbitals used by A are pure p or hybrids?
Answer» the p orbital used up here are not pure but HYBRID as during hybridization a trigonal planer geometry is obtained . in this geometry the DIPOLE moment is ZERO if the compound AB3 is formed by the pure p orbital overlap then the angle between 3 ligand will be 90 degree and structure formed WOULD have some non zero dipole moment .

Discussion

36.	When molten lithium chloride electrolyzed lithium metal is formed at cathide?
Answer» ,....?...................⌚

Discussion

37.	How will you convert benzene to 1,3,5- tri bromo benzene
Answer» Benzene TREATED with nitrating mixture ( HNO3 &H2SO4), forms nitrobenzene. Then treated with Sn&HCl, form aniline. Aniline reacts with Br2&FeBr3 forms tribromoaniline, then TREATING it with NANO2& HCl forms TRIBROMOBENZENE.

Discussion

38.	Why are physical properties of isotopes different bra.Ininly?
Answer» They have SIMILAR chemical propertiesbecause isotopes of an element havethe same NUMBER of electrons as an atom of that element. The electron arrangement is the same owing to same chemical properties. HOWEVER they have different NUMBERS of neutrons, which affects the MASS number.

Discussion

39.	How we will separate the mixture of sulphur,potassium chloride and carbon
Answer» SULPHUR and carbon can be SEPARATED by ADDING water as potassium chloride will dissolve in water,filter it and heat the SOLUTION to evaporate water,sulphur can be separated by DISSOLVING in organic solvent,leaving behind carbon.

Discussion

40.	What is the effect of the electronegativity of atom on geminal coupling constant?
Answer» ANSWER: BRAINLESIT my ANS and FOLLOW me

40.

What is the effect of the electronegativity of atom on geminal coupling constant?

Answer»

ANSWER:

BRAINLESIT my ANS and FOLLOW me

Discussion

41.	Formation of o-nitrophenol with reaction between a phenol and carboxylic acid anhydride
Answer» It WOULD FORM ACETIC ACID and CH3COOPh Hope this HELPS

41.

Formation of o-nitrophenol with reaction between a phenol and carboxylic acid anhydride

Answer»

It WOULD FORM ACETIC ACID and CH3COOPh

Hope this HELPS

Discussion

42.	What is the density of a substance of mass 100g and volume 10cm3?
Answer» MASS = DENSITY × VOLUME so density = mass/ volume = 100/1000 = 0.100 =0.1

Discussion

43.	Give the name of this nomenclature of aldehydes
Answer» 3,3-diethyl-1-formylhexanal..... CORRECT me if I am WRONG...

43.

Give the name of this nomenclature of aldehydes

Answer»

3,3-diethyl-1-formylhexanal.....

CORRECT me if I am WRONG...

Discussion

44.	What is an antimatter? (I only know it's cost ,it is the world's costliest material about 62.5 trillion per 1 gram.
Answer» As we KNOW all things have their OPPOSITES so the opposite of MATTER is antimatter

Discussion

45.	What is meant by oxidation state and what is oxidising agent with example
Answer» GAIN of OXYGEN or loss of HYDROGEN is TERMED as Oxidation Oxidation STATE it SOMETIMES also referred as Oxidation number the degree of oxidation of an atom in a chemical compound. Oxidising agent refers to the substance which has the capability to oxidise other substance. For eg. HALOGENS , Oxygen and Hydrogen peroxide.

Discussion

46.	Which is the production used for the manufacture of industrial alcohol?
Answer» The PRODUCT used for the manufacture of INDUSTRIAL ALCOHOL is 'the saffron spice'. hope dis helps

Discussion

47.	One mole of Chlorine combines with certain weight of a metal giving 111g of its chloride. the same amount of metal can displace 2g of hydrogen from an acid. what is the atomic weight of the metal?
Answer» Answers : (1) let metal be x Cl2 + x = N* xCl ( n moles) 1 mole = 71g 111g 91 cl = 35.5g) see that as it replaces 2g H = replacing 2 moles of H or 2+ charge thus metal has 2+ charge as Ca, Mg etc or 2 moles of metal like Na, K etc..... as Cl ha 1- charge so its two moles are used in the metal CHLORIDE as: XCl2 type ( for Ca type metals ) or (but here it is this type - a quite logic) 2XCl type (for Na type) so weight of chloride = 111= 2* 35.5 + x so x=40 here see that Ca and K has this much MASS bt K has 1 charge so should hv used its two moles thus finally use weight would be 80g bt used is 40 g. so metal is Ca and its mass is 40 g

Discussion

48.	When bleaching powder is dissolved in cold water the solution is formed due to
Answer» When bleaching powder is dissolved in cold water the SOLUTION is FORMED due to the heavy calcium salts which are known to be INSOLUBLE in water.

Discussion

49.	What is the effect of hydrogen on lytmus paper
Answer» Hey mate.. here is ur answer.. The hydrogen gas does not CHANGE the DRY blue LITMUS paper because the gas is unable to disassociate its IONS when the paper is dry and the red litmus paper stays red in color because hydrogen gas is acidic in nature.If the blue litmus paper is MOISTENED then it may change into red.

Discussion

50.	What is reduction? plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz answer it.
Answer» Hello FRIEND your answer is - <> 1.the action or fact of making SOMETHING smaller or LESS in AMOUNT, degree, or size. <>.2.a thing that is made smaller or less in size or amount, in particular. <> hope it HELPS you. <> if you find my answer useful so please mark as brainlist

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

How can you find an element group no. And period no.

HEY MATE,

HERE IS YOUR ANSWER...................

We already know that all the elements in periodic table are arranged serially according to their atomic numbers. There are 18 groups and 7 periods. The elements are arranged in such a WAY that the elements get categorized according to their properties.

We have to keep certain things in mind (Not applicable for transition groups and its elements)

1. The period of element relates the number of shells of an atom of the given element.

2. The group is similar to the no of valence electrons of given element.

3. The valency is the no of electrons it accepts or donates. So in case of non-metals valency = 8-valence electrons & in case of metals valency=valence electrons... This is B’COZ non-metals accept so lacked electrons only considered

4. The number of element in each period is calculated by 2n2.

=> Steps to find the position of an non-transitional element in periodic

1. First take the Atomic number of the given element. Say Cl... Atomic no.

2. Then calculate the electronic configuration using the atomic number 2+8+7=17 therefore the electronic configuration will be 2, 8, 7.

3. Here we find that the no of valence electrons of element is 7 as the valence shell has 7 electrons.

4. So know we easily understand that the group is 7 because the no of valence electrons is 7.

5. Now to find the period we have to understand that the period is the number of shell the element is having therefore here chlorine has 3 shells (K-2, L-8, and M-7). So the period of the given element is 3.

Thus the position of the given element (here chlorine) is …..

Group VII A (17th)

=>B’COZ VALENCE ELECTRONS = 7

Period 3rd

=>B’COZ NO OF SHELLS = 3

NB: Valency 8 refers to the group 0 and the element must be a Noble Gas.

Therefore, we can find the position of an element in periodic table and also the properties like this. The only thing we have to MEMORIZE is the Atomic number.

HOPE IT HELPS YOU........

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&

THANKS ...

MARK IT BRAINLIEST PLZ IF IT HELPS YOU...

An organic compound has the molecular c=40% ,h=6.6%and the rest is oxygen .The vapour density ii 15.What would be the molecular formula of the compound.

what is the element having atomic number 119? Don't spam..... Perfect answer will be marked brainliest....

Does elements having same VALENCY show same chemical properties?

Best example of displacement reaction.

Equilibrium constant depends on changes in

in naphthalene, how many resonating structures are there with their types. And find that t c-c bond is same or different

How many isomers of pentane exists?

State the properties of copper wire that make them useful for Electrical fitting

Differenciate between ionic solid, covalent solid and molecular solid

List the features of valence shell pair theory

Can u please type this following formula equation in word please it urgent I will 25 points

State the formula of the conjugate base of nh3

Which strochiometric defect increase the density of a solid

...........how does electronagitivity vary in a period and in a group??.............

What is hydrogenation?

Formation of clouds is a physical change. Justify.

What do u mean by adsorbant

Iupac name of this combination of compund

What will be the volume occupied by 10 g of oxygen at 25 degree celcius and 650 mm hg pressure

what will be the volume occupied by 10 g of oxygen at 25 degree celcius and 600 ml volume at 27 degree celcius

W why ac current is used for measuring the resistance of the electrolytic solution

Amount of oxygen in the atmosphere remains relatively constant because it is given off by

Self-assembly of magnetic iron oxide nanoparticles into cuboidal superstructures

The statue of unity is the statue of which Indian freedom fighter ?

Why is acidified kmno4 stronger oxidising agent than alkaline kmno4

E) determine the expected cell potential of the cobalt-silver cell?

Structure of C3H6O2..............

Effect the following conversionEthanol to isopropyl alcohol

Why ion present in gaseous state is less stabe rhan ion in gaseous stae?

Why does atomic size decrease from na to cl when we move third period of the periodic table?

Find the structure of C2H6O...........its urgent........

Why to we feel heat when we push our hand into a sack of wheat?

Why more heat is required in constant pressure as compared to constant volume?

If a molecule AB3 has zero dipole moment, the sigma bonding orbitals used by A are pure p or hybrids?

When molten lithium chloride electrolyzed lithium metal is formed at cathide?

How will you convert benzene to 1,3,5- tri bromo benzene

Why are physical properties of isotopes different bra.Ininly?

How we will separate the mixture of sulphur,potassium chloride and carbon

What is the effect of the electronegativity of atom on geminal coupling constant?

BRAINLESIT my ANS and FOLLOW me

Formation of o-nitrophenol with reaction between a phenol and carboxylic acid anhydride

What is the density of a substance of mass 100g and volume 10cm3?

Give the name of this nomenclature of aldehydes

What is an antimatter? (I only know it's cost ,it is the world's costliest material about 62.5 trillion per 1 gram.

What is meant by oxidation state and what is oxidising agent with example

Which is the production used for the manufacture of industrial alcohol?

One mole of Chlorine combines with certain weight of a metal giving 111g of its chloride. the same amount of metal can displace 2g of hydrogen from an acid. what is the atomic weight of the metal?

When bleaching powder is dissolved in cold water the solution is formed due to

What is the effect of hydrogen on lytmus paper

What is reduction? plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz answer it.