Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Showthat the volume of a gas dissolved in a given volume of a solvent is indepent of the pressure of the gas.

Answer»

and solids exhibit PRACTICALLY no change of solubility with changes in pressure. Gases as might be expected, INCREASE in solubility with an increase in pressure. Henry's Law STATES that: The solubility of a gas in a liquid is DIRECTLY proportional to the pressure of that gas above the SURFACE of the solution.

2.

Formaldehyde reacts with NH3give chemical equation

Answer»

+ 4NH3 -> (CH2)6N4 + 6H2O

3.

When arsenic atoms are added to germanium lattice it becomes?

Answer»

te!!!When ARSENIC atoms are added to GERMANIUM lattice, it becomes "EXTRINSIC SEMICONDUCTOR"Hope it help you

4.

Classify the following based on atomic City

Answer» FOLLOWING GIVE some CLUE.
5.

What is the main alloying element in high speed steel?

Answer»

in , Chromium is the main ALLOYING ELEMENTS in high SPEED METAL

6.

"Hi Complete the following chemical equations: NaOH(aq) + Cl2(g)→ (Hot and conc.) XeF6(s) + H2O(l)→ How would you account for the following? The value of electron gain enthalpy with negative sign for sulphur is higher than that for oxygen. NF3 is an exothermic compound but NCl3 is endothermic compound. ClF3 molecule has a T-shaped structure and not a trigonal planar one.

Answer»

to smaller size of oxygen the electron cloud is distributed over a small region of space, MAKING electron density high which repels the incoming electrons.(ii) This is DUE to lower bond dissociation ENTHALPY of F2 than Cl2 and comparable size of fluorine and nitrogen.(III) ClF3 molecule has a T-shaped structure. This is due to presence of two lone pairs in the outer shell of chlorine in ClF3 molecule which REPEL the bond pairs.

7.

The d orbital which has a maximum electrinic probability density along tow axses known as

Answer» KNOW the answer PLEASE ask to ANOTHER person
8.

What is the limitations of constant composition

Answer»

of definite proportion, sometimes called Proust's LAW or the law of definite composition, or law of constant composition states that a given chemical compound always CONTAINS its component elements in fixed ratio (by mass) and does not depend on its source and METHOD of preparation.1) The law does not HOLD true if the different isotopes of the ELEMENT are involved in making chemical compound.2)The law is not applicable when elements combine in the same ratio but different compounds are formed.Hope it helps:)

9.

Draw the structure of molecule of pentanoic acid

Answer»

ainliest if HELPFUL...:)

10.

How much magnesium oxide is obtained if 10 gram magnesium reacts with 10 gram oxygen

Answer»

is LIMITING REAGENT in this REACTION

11.

What is emf by potentiometer of everyday cell

Answer» F is ELECTRO MOTIVE FORCE .
12.

A crystalline solid is made of X Y and Z elements atoms of x for fcc packing while Y occupying octahedral voids while atoms of Z occupied tetrahedral void what will be the simplest formula of the solid if atom along anyone body diagonal remove

Answer»

be 1 y =4 andz=2

13.

What happens when a mixture of ammonia and oxygen is passed over platinum gauge heated to 800 degree Celsius?

Answer»

uld look this up. Google would be a good START. The oxidation of ammonia is a very IMPORTANT industrial PROCESS which is PART of the process for the conversion of atmospheric nitrogen to nitric acid. Multiple millions of pounds of ammonia are made and oxidised every year and a lot of work has gone into optimizing this process. The original sources or REVIEWS of this work would be much better sources than an answer on Quora.

14.

Predict group,period,and block of 12Mg, 23V, 51Sb, 86Rn

Answer»

group:2nd A group , period:3rd period ,block:s block 2)V - group: 5th group , period: 4th period , block - d block 3) Sb - group : 15th group , period : 5th period , block : p block 4) RN - group : 18TH group , period: 6TH period , block : p block

15.

Name the oxidizing agent in pb +c = pb +co2

Answer»

idizing AGENT -- LEAD ( PB) HOPE it HELPS...!!

16.

When a reversible reaction reaches equilibrium what happens?

Answer» E of forward direction is EQUAL to rate of BACKWARD direction at EQUILIBRIUM
17.

Please answer this:Law of Conservation of Mass

Answer» 1I am not SURE.
18.

About saturated plz say fast

Answer»

ed is a solution in which SOLUTE PARTICLES are in more amount than SOLVENT in a solution.in a saturated solution no more solute particles can be ADDED.....

19.

Determine the empirical formula for a compound with 68.4% Cr and 31.6% O

Answer»

..........................

20.

Actoin reagent diazomethen on ethanol

Answer»

ic hydroxyl groups were methylated by diazomethane in the presence of catalytic amounts of fluoboric acid (FBA). Primary aliphatic and unhindered secondary alcohols gave 84–98% yields of methyl ethers, while tertiary and moderately hindered secondary alcohols afforded lower yields. The order of REACTIVITY in the methylation of the isomeric butyl alcohols, as determined in competition experiments, was n > s > t, and of the epimeric cholestanols, 3β (e) > 3 α(a). The highly hindered alcoholic hydroxyl groups of isoborneol was not methylated by the new reagent. The methylation of weakly acidic phenols was catalyzed by FBA. The new methylation reaction was used to prepare directly methyl ethers of desoxycorticosterone and of testosterone, and to convert ASCORBIC acid selectively to its 2:3:6-trimethyl ether.eral ACIDS, particularly fluoboric acid, as catalysts.It reacts readily with carboxylic acids; the more weakly acidic phenols and enols are methylated only slowly, while alcoholic hydroxyl groups are GENERALLY not methylated at all by this reagent. ... the reaction of diazoacetate and ethanol with various mineral acids, particularly fluoboric acid, as catalysts.

21.

Determine the enthalpy of neutralization of N_HCl (strong acid) and N_naoh(strong basa) by thermochamical method

Answer»

olumes, 50.0 mL, of 3.0 M hydrochloric acid and 3.0 M sodium hydroxide solutions having an initial temperature of 20.0°C react in a calorimeter.  The resultant solution records a temperature of 40.0°C.  The heat gained by the resultant solution can be calculated using qsolution = m c ∆T    where m is the total mass of the resultant solution and c is the specific heat capacity of the resultant solution Since the solutions are mostly water, the solutions are assumed to have a density of 1.0 g/mL and a specific heat of 4.18 J/g°C.  The reaction of an aqueous hydrochloric acid solution with an aqueous sodium hydroxide solution is represented by the neutralization chemical equation HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) + heat Curriculum Notes  HCl(aq) + NaOH(aq) --> NaCl(aq) + H2O(l) + Energy THERMOCHEMISTRY  determine the heat exchanged at constant pressure, q = m c ∆T.     Calculating the limiting reactant, the change in enthalpy of the reaction, ∆Hrxn, can be determined since the reaction was conducted under conditions of constant pressure ∆Hrxn = qrxn / # moles of limiting reactant This reaction is classified as an exothermic reaction. This demonstration is usually performed when topics in thermochemistry or thermodynamics are being discussed. The reaction of HCl(aq), a strong acid, with NaOH(aq), a strong base, is an exothermic reaction. The big idea for most calorimetry themed demonstrations is energy is conserved.  Energy cannot be created or destroyed, but it can be exchanged. qlost+ qgain = 0   or   qreleased + qgain = 0 This demonstration also illustrates how the formation of water (one of the driving forces) can act to drive a reaction to spontaneity. This is a neutralization reaction with the hydroxide ion acting as the base and the hydronium ion acting as the acid.   Making this demonstration interactive - active learning The instructor should "frame" the demonstration and guide the discussion.  After students observe the initial conditions of the solutions and observe the results of the demonstration, it is important for the students to be allowed to discuss what gains heat and what loses heat in this chemical process before the instructors tells the students the answers. Students should be asked to identify what gains heat and what looses heat - use a series of Clicker Questions.  Ask "What gains heat?"  "How much energy, as heat, is released or gained by the solution?"  "How much energy, as heat, is released or gained by the reaction?" "What are the primary species present in each solution before the reaction?"  "What are the species present in the solution after the reaction?"  "How is the heat manifested - what are the water molecules doing differently while the reaction occurs?" Student difficulties with thermochemistry concepts Students have difficulty distinguishing the terms temperature and heat. Students have difficulty with the idea that the bulk material they can see is NOT the chemical reaction. A chemical reaction has no mass, has no specific heat, and does not change temperature.  A chemical reaction consists of bonds breaking and bonds forming and this is a form of potential energy.  In this demonstration, the chemical reaction releases heat to the immediate the surroundings.  The water and dissolved chemicals gain heat - heat is transferred into the solution, which is mostly water. gained heat.  When heat is transferred into the surroundings, the solution, from the chemical reaction, the solution increases in temperature.  The water molecules being formed by the reaction have higher kinetic energy compare to the original water molecules in the solution. The newly formed water molecules collide with the original water molecules causing some of the original water molecules to move faster, there is a net increase in kinetic energy of the water molecules.   Kinetic energy = (1/2 mv2)average  = (3/2) kT   T is the temperature and k is the Boltzmann constant   Students have a difficult time understanding that through the vibration and movement of atoms and or molecules heat is exchanged and this is a form of kinetic energy. There is a computer animation AVAILABLE depicting the rapid movement of newly formed water molecules as a result of an acid-base reaction to ACCOMPANY this demonstration. There is a calorimetry computer simulation available to accompany this demonstration. There is an in-class POGIL-like activity to accompany this demonstration. There are a set of interactive guided-inquiry Power Point slides to accompany this demonstration. Showing acid-base neutralization calorimetry demonstration, the computer animation at the particle LEVEL, and the chemical equations helps students connect the macroscopic, microscopic (particle), and symbolic levels of representation - Alex Johnstone's Triangle - which leads to a more in-depth understanding of the concepts associated with thermochemistry.

22.

What is the mass of 10 to the power 23 molecules of co2 gas?

Answer» U got the ANSWER. If you got then MAKE sure hit a LIKE..
23.

What is meant by canonicial structure in chemistry?

Answer»

istry, resonance or mesomerism[1] is a way of describing delocalized electrons within certain molecules or polyatomic ions where the BONDING cannot be expressed by one SINGLE Lewis STRUCTURE. A molecule or ion with such delocalized electrons is represented by SEVERAL contributing structures[2] (also called resonance structures or canonical structures).

24.

Co2 (carbon dixonside) is the doorway which let's oxygen" the oxygen advantage

Answer»

l about BREATHING.  Yes, that thing we do automatically, and probably don’t give a lot of THOUGHT about, UNLESS of course we can’t.  Would it surprise you to learn that the majority of people don’t really understand how breathing works, or how to breathe PROPERLY?  This is such an important topic and book that I’m DEVOTING an entire blog to it.

25.

Can someone give me the answer

Answer» KNOW YOU NEED TO PREFER BETTER ONCE
26.

Solve the 75th... And answer as soon as possible. Solution required not option..

Answer»

s only one lone PAIR on XeO3there are TWO lone pairs on XeF4there are two equilateral lone pairs on CLF3 there are two lone pairs and HOClfor more explanation you can draw their STRUCTURES

27.

Explain the function of endocrine glands by presenting an act like why I am

Answer»

ng to me: Endocrine glands are glands of the endocrine system that secrete their products, HORMONES, directly into the BLOOD rather than through a duct. The major glands of the endocrine system INCLUDE the pineal gland, pituitary gland, PANCREAS, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and ADRENAL glands. The hypothalamus and pituitary gland are neuroendocrine organs.

28.

Explain the function of endocrine glands by presenting an act like why i am important

Answer»

ne glands are glands of the endocrine system that secrete their products, hormones, directly into the blood RATHER than through a duct. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.The endocrine system is made up of glands that PRODUCE and secrete hormones, chemical substances PRODUCED in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, METABOLISM (the physical and chemical processes of the body), and sexual development and function.

29.

C6H5NHCH3+NaNO2+HCl this reaction product

Answer»

so-N-methylaliniline and NACL

30.

In countries where it snows heavily , roads are cleared by sprinkling salt .Why??

Answer»

eases the FRICTION and HENCE HELP against skidding of VEHICLES.

31.

What what happens when ferrous sulphate crystals are heated?

Answer»

don't know know ANSWER or this question I ALSO ADVICE to use Google

32.

How many grams of fe2o3are required to get 122garmof iron

Answer»

wer is 170g ..... HOPE you got your problem solved.. So PLEASE HIT a like. THANKS

33.

Identy any one cation and anion form the Salt caco3

Answer»

is Ca²+Anion is CO3²-.

34.

What happens when lead is dipped in copper chloride solution?

Answer»

strip of lead metal is PLACED in a solution of copper chloride, then lead chloride solution and copper metal are FORMED. The green colour of copper chloride fades and the solution becomes colourless. ... Lead is more reactive than copper HENCE it is able to DISPLACE it from its solution.

35.

Causes higher lime salts causing increase in quantity of molasses and scaling of heating surfaces

Answer»

n saline WATER EVAPORATOR using CARBON dioxide .Inhibiting scale formation in fresh water RECOVERING.

36.

The edge length of a face centred unit cubic cell is 508 p.M. If the radius of cation is 1:10 p.M. The radius of anion will be

Answer»

t cell for the simple cubic structure contain one-eighth proportion of eight corner ATOM.to make one complete atom MOLECULE or ion in each UNIT cell .Given the radius of the atom or ion the EDGE length is just edge length. (a)=2R where r is the radius if the atom or ion .

37.

What is bromine water test? What does it prove, explain with equation (if possible). ??????

Answer»

e for unsaturation in organic compounds (ALKANES and alkynes). If, SAY, 1cm3 of the compound is shaken with a few drops of bromine water, which is red/brown in COLOUR, the bromine water is decolourised.Alkenes REACT in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond BREAKS, and a bromine atom becomes attached to each carbon. ... If an aqueous solution of bromine is used ("bromine water"), you get a mixture of products.

38.

Correct statement among the following. (1) Homologous have same chemical &physical properties.(2) Homologous have same general formula &physical properties.(3) Homologous have different chemicalproperties with different general formula.(4) Homologous have same chemicalproperties with same general formula.

Answer»

...................

39.

The weight of a pure sample of a KCL O3 to be decomposer in order to get 0.96 o2

Answer»

➡️ 2KCL + 3O2So, 2×122.5 GM KCLO3 = 3×32 gm O2So, X gm of it = 0.96 O2Hence, X = 2×122.5×0.96/3×32= 2.45 gm KClO3.

40.

What is difference in molecular mass between two adjejacent member of homologous series

Answer»

jacent member in HOMOLOGOUS SERIES DIFFER by mass of 14 UNITS

41.

What is washing soda state two properties of washing soda class10?

Answer» HEY ıllıllıWashing Soda is sodium carbonate CONTAINING 10 molecules of water of crystallisation. It is used for softening of HARD water , cleaning and laundry It is used in the manufacture of soap , borax , CAUSTIC soda , sodium phosphate etc . It is used in paper and textile industry and also used in petroleum refining and metal refining .
42.

Please answer........what is electromeric effect??

Answer»

meric EFFECT refers to a molecular polarizability effect occurring by an intramolecular electron DISPLACEMENT characterized by the SUBSTITUTION of ONE electron pair for another within the same atomic octet of ELECTRONS.

43.

Draw stureture formula 1,2 dibromoethane

Answer»

with REQUIRED HYDROGENS

44.

Who explained EMI (A) Faraday (B) Oerstead (C) Ampere (D) Volta

Answer»

ersteadhope U LIKE it

45.

Calculate the ph at which an indicator with ka

Answer»

und is acidic if it can donate hydrogen ions to an aqueous solution, which is equivalent to saying the COMPOUND is capable of creating hydronium ions (H30+). The general equation describing what happens to an acid (HA) in solution is: HA + H20 <--> H30+ + A-, where A- is the conjugate BASE.

46.

Eq of methane into ethane

Answer» L2 ------------> CH3-Cl + HCl2CH3-Cl +2NA --------------> C2H6 + 2NaCl
47.

The weight of pure sample of KCL O3 to be decomposed in order to get 0.96 o2

Answer»

➡️ 2KCL + 3O2So, 2×122.5 GM KCLO3 = 3×32 gm O2So, X gm of it = 0.96 O2Hence, X = 2×122.5×0.96/3×32= 2.45 gm KClO3.

48.

Hey folks! tell me if this is correct or not !if you answer you get a brainliest.......

Answer»

t is EXACTLY ...CORRECT...

49.

You are given ethanol,concentratedsulphuric acid and a small piece of sodium metal.Using these chemicals,how do you prepare i)hydrogen gas ii) ethene gas....

Answer» E you ASKING
50.

Slogan writing on 'Incredible India' who answer this question I mark he/she in the brain list!

Answer»

s a vibrant culture and has people of different religions, different places of origin and different cultures living together for centuries and has thus assimilated and gave birth to the unique experience called India. It is only in India that you will find so much diversity and yet so much peace as people from different cultures coexists and has a mutual respect that is hard to find elsewhere. To express these we have famous Indian slogans and quotes on India.The long history of the Indian subcontinent makes it a hotbed for tourism, both international and domestic. From the forts of the Rajputs to the Hill station of Himalayas to the biodiversity of Central India to Medical tourism and the colonial monuments left throughout the country, India has no shortage of places to visit and the list can only go longer. There’s something for everyone here and the Slogans on Incredible India truly justify that emotion.Madhya PRADESH Tourism Slogan – Heart of IndiaMadhya Pradesh is in Central India and is truly the centre of India as it is here where the North and South, the East and the West merge together. The state is rich in wildlife and is home to the tiger among NUMEROUS other animals in its National Parks. The varied geography is the birthplace of many rivers which are the lifeline of central and southern India.RAJASTHAN Tourism Slogan – Jaane Kya Dikh JayeOne of the most successful ad campaigns of Rajasthan tourism was Jaane Kya Dikh Jaye, which showcased stunning landmarks and places like the Hawa Mahal, Kumbalgarh Fort, Amer Fort, Thar Desert and many more that truly leave the tourists spellbound.Rajasthan Tourism Slogan – Padharo Mhare DeshNothing accentuates the grandeur of Rajasthan like the slogan Padharo Mhare Desh. Rajasthan is a land of forts, palaces and its unique ART and culture and is the preferred destination of every third tourist that visits India. Rajasthan is an experience of a lifetime and gives you a taste of the Rajputana life.Odisha Tourism Slogan – The Soul of Incredible IndiaOdisha is an enchanting presence on the coast of Bay of Bengal and offers a sense of serenity originating from its seamless transformation from majestic mountains to the beautiful coastline to the frolicking rivers to the calmness of its lakes. Odisha offers a unique blend of wildlife, beaches and temples. The home to the Kalinga Empire, Odisha has no shortage of historic monuments and is home to one of the most famous temples of the WORLD in Konark Sun temple to one of the biggest religious festivals of Rath Yatra in Jagannath Puri.