52639 + Interview Questions in Secondary School in Chemistry

1.	State and explain avogadro's law in detail
Answer» ANSWER: Avogadro's law. ... Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same NUMBER of molecules." For a given mass of an ideal gas, the volume and AMOUNT (moles) of the gas are DIRECTLY proportional if the temperature and pressure are constant. Hope this helped you Please Mark this answer as BRAINLIST

1.

State and explain avogadro's law in detail

Answer»

Avogadro's law. ... Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same NUMBER of molecules." For a given mass of an ideal gas, the volume and AMOUNT (moles) of the gas are DIRECTLY proportional if the temperature and pressure are constant.

Hope this helped you Please Mark this answer as BRAINLIST

9.	Preparemodelsofvariousradicalsusingcrdboard
Answer» SULPHATE,CARBONATE,bisulphate,BICARBONATE

11.	Ga3+ salt are reducing agent
Answer» GE 3+ is a GOOD REDUCING AGENT.......

12.	Name a carbonate which does not on heating.
Answer» CARBON (from Latin: carbo "coal") is a chemical element with the symbol C and .... The BOTTOM left corner of the PHASE DIAGRAM for carbon has not been scrutinized experimentally.

38.	K. An organic compound containingoxygen, carbon, hydrogen and nitrogencontains 20 % carbon, 6.7 % hydrogenand 46.67 % nitrogen. Its molecularmass was found to be 60. Find themolecular formula of the compound.
Answer» i have LITTLE. BIT CONFUSION in the.answer

46.	If there is double bond between two atoms so would we take it as 1 bond pair in vsepr theory ???
Answer» Yes. We CONSIDER multiple bonds as a single super electron PAIR in the VSEPR theory.

48.	Correct decreasing order of ionic radius isc^4-N^3- O^2-
Answer» As IONIC radius is DIRECTLY PROPORTIONAL to CHARGE on anion. C^4- > N^3- > O^2-

Explore topic-wise InterviewSolutions in Current Affairs.

State and explain avogadro's law in detail

In what form does oxygen occur in nature​

Two carbon atoms in which of the followinghave more number of shared electrons1) Benzene2) Acetylene3) Ethane 2 4) Ethylene ​

Which of following have maximum tendency to flow?? A waterB sodium chlorideC sodiumD Chlorine

What is the origin of term vitriol

Preparemodelsofvariousradicalsusingcrdboard

What is the valency of NH4I

Ga3+ salt are reducing agent

Name a carbonate which does not on heating.

Name of this compund in IUPAC​

How to find number of electrons of radicals and their valency? please say Carbonic Acid Numb of electrons and it's valency (how is it 32?)​

Why hot tea is served in cups made up of ceramic instead of steel​

What is the value of dipole moment if the covalent bond has 25% ionic character??

Calculate the ratio of atoms present in 5g of magnesium and 5g of iron.[atomic mass of Mg=24u,Fe=56u]

Principles of fractional distillation of 1st type liquid mixture

Alfa -d -glucose and beta -glucose are pair of

Why is ogannesen(118th element) not considered a noble gas?​

How heingberg uncertainty principle rule is responsible for path of electron

How to convert CH3CH2OH to CH2=CH2?​

What is the stationery phase in paper chromatography ​

First tell the valency of nitrogen and oxygen then answer!NO3(Nitrate)now valency of nitrogen is -3oxygen -- -2then the valency should be -3+(3*-2)=-3+(-6)=-3-6=-9but why it's -1????like this valency of HCO3 is h-+1c-+4o-. -2*3so 1+4+(-6) = 5-6 = -1 then why not in case of NO3??? ​

What happens when you pour some acetonr on your palm? ​

Let's see who's answer is correct.​

Noble gases exist as ​

Definea. caustic sodab. washing sodac. baking sodad. bleaching powdere. plaster of Paris​

C. Express the quantities withor without exponents as the case maybe. a)1.230×10^4 b)0.002030 c)1.23×10^4 d)1.89×10^-4​

Why do we see water droplets on the outer surface of a glas and containing ice cold water? ​

How heinburg uncertainty principle is existance for path of electron

How to separate the mixture of copper sulphate and salt

State two reasons for supporting that brass is a mixture and not a compound

Convert the following degree Celsius temperature to degree Fahrenheit a.40°C b.30°C​

What is petrochemicals ?​

Radium-223 , mass no. .... , no. of proton ...., no.of neutrons...., no. of electrons....?​

20) Energy of a photon with a wavelength of 450nm isa) 4.36x10-12 ergsb) 4.36x10-13ergsc) 4.36x10-20 ergsd) 4.36x10-11ergs​

K. An organic compound containingoxygen, carbon, hydrogen and nitrogencontains 20 % carbon, 6.7 % hydrogenand 46.67 % nitrogen. Its molecularmass was found to be 60. Find themolecular formula of the compound.​

How many moles are present 8g ofice

Equation of the product formed and hydrochloric acid

15g of ethane at 380 torr and 273°c occupy a volume of

_______ put forward the periodic table

Atomic number and mass number of an elements are 17 and 35 respective find number 9f proton,electron,netron

If there is double bond between two atoms so would we take it as 1 bond pair in vsepr theory ???

Difference between metal and nonmetal in chemical properties

1)METALS tend to give ELECTRONS, whereas non metals tend to receive electrons.

2) The boiling point of metals are high, some are exception. whereas non - metals have low melting point.

3) The density of metals are high, whereas as LESS density is found in non metals. which we called PLASMA.

Correct decreasing order of ionic radius isc^4-N^3- O^2-​

(iii) Slide showTransition effect can be seen inviewi) (i) Slide sorterii) Notes Pages10 The recorded sound files are assigned the extensiona. midiii).wma(iii) .wav​

Write a note on thin layer chromatography ​

In what form does oxygen occur in nature

Two carbon atoms in which of the followinghave more number of shared electrons1) Benzene2) Acetylene3) Ethane 2 4) Ethylene

Name of this compund in IUPAC

How to find number of electrons of radicals and their valency? please say Carbonic Acid Numb of electrons and it's valency (how is it 32?)

Why hot tea is served in cups made up of ceramic instead of steel

Why is ogannesen(118th element) not considered a noble gas?

How to convert CH3CH2OH to CH2=CH2?

What is the stationery phase in paper chromatography

First tell the valency of nitrogen and oxygen then answer!NO3(Nitrate)now valency of nitrogen is -3oxygen -- -2then the valency should be -3+(3-2)=-3+(-6)=-3-6=-9but why it's -1????like this valency of HCO3 is h-+1c-+4o-. -23so 1+4+(-6) = 5-6 = -1 then why not in case of NO3???

What happens when you pour some acetonr on your palm?

Let's see who's answer is correct.

Noble gases exist as

Definea. caustic sodab. washing sodac. baking sodad. bleaching powdere. plaster of Paris

C. Express the quantities withor without exponents as the case maybe. a)1.230×10^4 b)0.002030 c)1.23×10^4 d)1.89×10^-4

Why do we see water droplets on the outer surface of a glas and containing ice cold water?

Convert the following degree Celsius temperature to degree Fahrenheit a.40°C b.30°C

What is petrochemicals ?

Radium-223 , mass no. .... , no. of proton ...., no.of neutrons...., no. of electrons....?

20) Energy of a photon with a wavelength of 450nm isa) 4.36x10-12 ergsb) 4.36x10-13ergsc) 4.36x10-20 ergsd) 4.36x10-11ergs

K. An organic compound containingoxygen, carbon, hydrogen and nitrogencontains 20 % carbon, 6.7 % hydrogenand 46.67 % nitrogen. Its molecularmass was found to be 60. Find themolecular formula of the compound.

Correct decreasing order of ionic radius isc^4-N^3- O^2-

(iii) Slide showTransition effect can be seen inviewi) (i) Slide sorterii) Notes Pages10 The recorded sound files are assigned the extensiona. midiii).wma(iii) .wav

Write a note on thin layer chromatography