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.

Hey guys plzz gimme the suitable conditions for highr yield of ammonia....

Answer» E >>>>>>>>>>>>>.here is u answer!!!!!!!!!!!!but mark me as brainlist @@@@@@@@@@@@@@@@the conditions required to MAXIMISE the yield of ammonia. ... 2 High pressure on the reaction at equilibrium FAVOURS the shift of the equilibrium to the right because the forward reaction proceeds with a DECREASE in number of moles.Hence a pressure of about 200 atm will be optimal for the higher yield of ammonia.
2.

By chemical test show the difference between dil.sulphuric acid and dil.hcl acid

Answer»

r here is ur answerLead Nitrate reacts with HCl and H2SO4 as follows.Pb(NO3)2 +2HCl——→PbCl2 + 2 HNO3Pb(NO3)2 +H2SO4——→ PbSO4 +2HNO3Both Leab chloride and Lead Sulphate are insoluble in cold WATER.But PbCl2 is SOLUBLE in hot water. But PbSO4 is insoluble in hot water also.To summarize Lead chloride prepitate formed by the reaction of HCl.and Lead Nitrate will be soluble in hot water but insoluble in cold water.But Lead Sulphate formed by the reaction of H2SO4 and Lead nitrate will be insoluble in both hot and cold water.Thus we can distinguish HCl and H2SO4 , USING Lead Nitrate.hope it helps U dear

3.

Diamond and graphite are made up of carbon and shows same chemical properties.what is the properties called

Answer»

and DIAMOND are madeup from carbon but have different allotropes. Allotropes have different STRUCTURES but same chemical composition. In graphite, the carbons are attached in hexagonal LATTICE. but the diamond is made in the STRUCTURE of tetrahedral lattice.

4.

Formula for ferrous ferric oxide

Answer» FERRIC OXIDE: FeO·Fe2O3
5.

Write the properties of metal and non metal with exception

Answer»

...Strong : potassiumDuctile SONOROUS hard lustrousNon metals Brittle not sonorousnon DUCTILE NON lustrous : DIAMOND

6.

Why the sulphur trioxide, obtained during the contact process cannot be directly absorbed in water

Answer»

ssolved in WATER, SULPHUR trioxide forms a “mist” of sulfuric acid, which can be difficult to store and handle. Because of this, in ORDER to form sulfuric acid, an INTERMEDIATE called “oleum” must be FORMED, where SO3 is dissolved  in H2SO4, giving H2S2O7. This is then dissolved in water  to form sulfuric acid.Hope this helps you

7.

What is the nature of Barium sulphate

Answer» MATE ❤️❤️ HERE IS UR ANSWER...BARIUM SULPHATE IS A SALT WHICH CRYSTALLINE IN NATURE INSOLUBLE IN WATER AND NEUTRAL..IT'S ACID RADICAL IS SULPHATE AND BASIC RADICAL IS BARIUMHOPE THIS WILL HELP YOU ❤️ ❤️STAY BLESSED ❤️ ❤️@PANKHUDI NEWELY JOINED ✌️ ✌️
8.

What is the role of the atmospheric climate conditions

Answer»

osphere prevents the sudden increase in temperatureduring the DAYLIGHT hours. And during the night, it SLOWS down the escape of HEAT into outer space The atmosphere keeps the average temperature of the Earth FAIRLY steady during the day and even during the course of the whole year.Hope this will help youplease mark it as brainliest

9.

Account for the following (i) pKb of aniline is more than that of methylamine (ii) Ethylamine is soluble in water whereas aniline is not. (iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide. (iv) Although amino group is o and p — directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline. (v) Aniline does not undergo Friedel-Crafts reaction. (vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines. (vii) Gabriel phthalimide synthesis is preferred for synthesizing primary amines.

Answer»

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10.

In a reaction given below: Identify the limiting reagent, if any, in the following reaction mixtures. (i) 300 atoms of A + 200 molecules of B (ii) 2 mol A + 3 mol B (iii) 100 atoms of A + 100 molecules of B (iv) 5 mol A + 2.5 mol B (v) 2.5 mol A + 5 mol B

Answer»

as the CHEMICAL reaction is considered, if two reactants are PRESENT, consider it as A and B. If reactant A is present higher amount compared to the reactant B, which is of lower amount. Then reactant B is called the "limiting reagent". As per as the above equation is consider, 1 atom of A reacts with 1molecule of B to give the products.  i) "300 atoms" of A reacts with "200 molecules" of B to give product. Here, "200 molecules" of B reacts with 200 atoms A and "100 atoms" of reactant is left. Hence, here the lower concentration reactant B is called the "limiting reagent". ii) 2 mole of reactant A reacts with 3 mole of reactant B to give products. Here 2 mole of A reacts with 2 mole of B and 1 mole of reactant B is left. Hence here the lower concentration reactant A is called the "limiting reagent". iii) "100 atoms" of A reacts with "100 molecules" of B. Here in the case the reaction is stoichiometric. In such reactions no "limiting reagent" is present. IV) 2.5 mole of A reacts with 2.5mole of B to give product. The 2.5mole of A remain left. So here B is the "limiting reagent". v) 2.5 mole of A reacts with 2.5 mole of B to give product. Here the 2.5 mole of B is remain left. So A is the "limiting reagent"."

11.

Name the gas displaced in Victor Meyer’s method.

Answer»

was REPLACED THANK for SEEING HOPE it HELPS you

12.

How to tell whether a reaction is first order second orde?

Answer»

mate here is your answer✌✌The simplest kind of second-order reactionis one whose rate is proportional to the square of the concentration of one reactant. ... A second kind of second-order reactionhas a REACTION rate that is proportional to the product of the concentrations of two reactants. Such REACTIONS generally have the form A + B → products.It doesn't MATTER how many reactants there are. The concentration of each reactant will occur in the rate equation, raised to some power. Those powers are the individualorders of reaction. The OVERALL order of thereaction is found by adding them all up.✌✌hope it's HELPFUL for you✌✌

13.

Write the iupa name of following structural formulae. CH_3 write the IUPAC name of the following structure formula CH3 CH OH CH2 CH3

Answer» AC NAME of this COMPOUND is.......Butane-2-ol
14.

Answer plzzzzzzzzzz.....

Answer» UR answer.....Lattice energy DECREASES with increase in the size of the ALKALI metal.Size of alkali metal increases on going down the group from Na to Cs.Hope this HELPS you friendThanks ✌️ ✌️
15.

Iron gets rusted but gold does not.why?

Answer» REACTIVE to air and MOISTURE that's why it gets RUSTED but GOLD is very less reactive and it doesn't reacts with air, moisture or water.
16.

The particle present in a liquid such as kerosene that is non electrolyte

Answer»

will RIGHT ANSWER

17.

Describe briefly the froth flotation process for concentration of sulphur ores

Answer»

ocess is mainly useful for sulphide ores which have no wetting property whereas the impurities GET wetted..The ore with impurities is finely powdered  and kept in water taken in a floatation cell...air under pressure is blown to produce froth in waterFroth so PRODUCED, TAKES the ore particles to the surface, but impuries get settled in the bottomThis WAY, froth is separated and washed to get ore particles

18.

Write the cleansing action of soaps and detergents

Answer»

your answer......Cleansing ACTION of Soap ...When soap is dissolved in water, it forms of colloidalsuspension in water in which the soap molecules clustered TOGETHER to form a spherical micelles. In soap micelle, the soap molecules are arranged radially with hydrocarbon and directed towards the centre and ionic and directed outwords..When a dirty cloth is put in water containing dissolved soap, then the hydrocarbon ends of the soap molecules in the micelle attach to the oil or grease particles present on the surface of dirty cloth. In this way the soap micelle entraps the oily or greasy particle by USING its hydrocarbons ends. The ionic ends of the soap molecules in the micelle, however, remain attached to water. When the dirty cloth is agitated in dispersed in water due to which the soap water becomes dirty but the cloth gets cleaned. The cloth is cleaned thoroughly by rinsing in clean water a number of times....Cleansing Action of Detergent...The cleansing action of Detergent is similar to that of a soap. That is, a Detergent works by MAKING the oil and grease particles of dirty clothes dissolve in water though the formation of micelles. DETERGENTS are usually used to make washing powders and shampoos.....I Hope This Will Help You

19.

Organic chemistry by D.K.Singh chapter 5 answer

Answer»

!! POST your QUESTION.

20.

What are the Uses of Non Metals...

Answer»

o cover CABLE WIRING since they cannot transfer electricity.✔Used to make handles for pots and pans since they cannot conduct heat. No heat will be transferred to the handle when cooking.✔ Nitrogen is used as fertilizer for plants.✔ Chlorine is used to make purify WATER, especially SWIMMING pools.✔ OXYGEN is used to breathe. “The air we breathe”

21.

hey what are the characteristics of electromagnetic waves????? don't copied it from google give me perfect answer

Answer»

ies of electromagnetic waves :-- Travel in a VACUUM with a speed of 3.0x108m/s.- Do not require material medium for their propagation.- TRANSVERSE in nature.- Posses and transfer energy. The amount of energy possessed by an electromagnetic wave of frequency f is EXPRESSED as E= hf, where h is Plank’s constant and is equal to 6.63x10-9Js.- Carry no charge (not charged) and are not deflected by a magnetic or electric FIELD.- Undergo reflection, refraction, DIFFRACTION, interference and polarization effects.

22.

This is from 11 class and from chemistry : What are the drawbacks of Rutherford Scattering experiment???? don't copied it from google give me perfect answer

Answer» KS OF RUTHERFORD SCATTERING EXPERIMENT :✔️It could not explain line spectra of atom.✔️It could not explain stability of an atom because this MODEL does not obey Maxwell law of ELECTRODYNAMICS. According to Maxwell electron should continuous emit radiation and thus and gradually lose energy , so its distance from nucleus should become shorter and FINALLY it should fall into the nucleus. However this never happen.
23.

How did Mosley's work on atomic numbers show that atomic number is a fundamental property better than atomic weight??

Answer»

seley's CONTRIBUTION the Periodic Law can be restated: Similar properties recur periodically when elements are arranged according to INCREASING ATOMIC NUMBER." Atomic numbers, not weights, determine the factor of chemical properties. please MARK me brilliant

24.

5 th question as fast as you can please

Answer»

'd' is CORRECT

25.

Please answer the 1st and 2nd questions as fast as you can

Answer»

on B is correct. Le-Chatelier's principle2) Option A is correct. Only homogeneous CHEMICAL REVERSIBLE reactions.

26.

KP is less than KC in2 nd one fast fasttttt

Answer» CTION is the ANSWER
27.

the value of equilibrium constant gives us a relative idea about the extent to which a reaction proceeds is it true or false

Answer»

tement is true..Value of EQUILIBRIUM CONSTANT gives US a RELATIVE idea about the extent to which a reaction proceeds.

28.

At same temperature N2O4 dissociate s into NO2 upto 40% and 50% at total pressure P1 and P2 respectively. Then ratio of P1 and P2 is........? answer given[7/4]

Answer»

check the ATTACHMENT properly..It will SURELY help you MATE..GOOD LUCK ✌️✌️

29.

How will you convert benzene to acetophenone

Answer»

.it MIGHT HELP U

30.

Compound ac to s4 o2 reacts with any metal to form compound b and water gas is born with a pop sound compound a on treatment with an alcohol see in presence of an acid forms a sweet smelling compound dc 48842 on addition of any ways to decrease bank bnc and if i a b c and d

Answer»

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31.

Example on photochemical reaction

Answer»

n:- Example of a photochemical reaction.Answer:-1) Photosynthesis where CO2 and H2O gets converted to Glucose and O2 in the presence of light and with the help of chlorophyll in the CHLOROPLASTS which help to capture the light energy..2) Synthesis of Vitamin D under our skin when exposed to sunlight is also an example of photochemical reaction.3) In chemistry too there are several photochemical reactions like Halogenation of ALKANES takes place in the presence of light.

32.

Predict the block , periods and group of mg(z=1)

Answer»

s s ... 3 PERIOD 2 GROUP

33.

Tell me this ! is this correct ?I will mark brainliest !really I will do that ..thank you ,1604.

Answer» E it is the CORRECT ONE
34.

Do alkaline can be cakled as bases ???

Answer» UM HYDROXIDE is a base, is a salt of an alkaline earth metal, but it is not soluble in water, so it is not an alkali. Base:- A base is a substance which when dissolved in water GIVE hydroxide (oh-) ions in the solution.
35.

Write an article about the uses of electroplating in daily life

Answer»

F ELECTROPLATING"➡️Electroplating used in AestheticsValuable METALS which are rare and expensive like gold and silver are very common examples for this application.With the help of electroplating, a thin layer of these valuable metals can be coated on a cheaper metal which can give an attractive look to the final product at lower cost. This is the one of the widest commercial application of electroplating today. This process is used for designing jewellery and other ornaments.➡️Electroplating used in Commercial ApplicationsElectroplating is used on car parts with a thin layer of chromium for a smooth texture and appearance. They are also done on various other appliances customized according to the buyer’s request.➡️Uses of Electroplating to prevent corrosionAs metals are prone to natural effects such as corrosion, a thin layer of non-corrosive metals COVERING the corrosive one can help metals and appliances last longer than usual. The non-corrosive metals such copper, chromium and nickel are basically used these days to spread over corrosive metals like steel and iron.➡️Electroplating helps in conduction of ElectricityIn integrated circuits which are used in computers, cell phones and other electronic devices, uses good conductors of electricity such as gold and silver. But, due to the high price of these metals, a small quantity of these PRECIOUS high quality metals can be coated as a thin layer over other metals and helps in the conduction of electricity.➡️Electroplating is used to reduce frictionApart from these uses, electroplating can be used in other areas where we can reduce friction by introducing a certain kind of metal over another.➡️Electroplating helps to protect from radiationElectroplating also helps to protect from radiation, abrasion and many other natural phenomena just by imparting the DESIRED characteristics to a surface of the metals which LACKS those properties.HOPE IT HELPS.....

36.

Why freezing point decreases kn addition of impurities?

Answer»

purity is added , Its FREEZING point decreases.Reason:The depression in Freezing point increases with increase in concentrate of solute because on adding the solute, vapour pressure BECOMES  lower than that of PURE SOLVENT. Hence freezing occurs at lower temperature.HOPE THIS HELPS.... plz mark it as brainlies....

37.

Double bond in alkenes are dectected by adding..?

Answer»

jbarwo901Bromine water TEST. Unsaturated vegetable oils contain double carbon-carbon BONDS. These can be DETECTED using bromine water (just as ALKENES can be detected). Bromine water BECOMES colourless when shaken with an unsaturated vegetable oil, but it stays orange-brown when shaken with a saturated vegetable fat.

38.

Why is life possible on earth where as not possible on Venus and Mars

Answer»

there is no ATMOSPHERE on VENUS and MARS

39.

Electronic configuration of first 20 elements of periodic table

Answer»

your ANSWER....

40.

How is plaster of Paris chemically different from gypsum? How are they interconverted? Write one use of plaster of Paris.

Answer»

your ANSWER to the QUESTION

41.

How to calculate ionization potential and electron affinity in dft using gaussian 09

Answer»

oopman's THEOREM, How I can calculate EA and IP DIRECTLY from HOMO and LUMO energies. ... All Answers (3) Telluroformaldehyde and its derivatives: STRUCTURES, ionization potentials, electron affinities and singlet-triplet gaps of the X 2CTe and XYCTe (X,Y = H, F, Cl, BR, I and ...

42.

In allene structure three carbon atoms are joined by

Answer»

tral carbon ATOM of ALLENE forms two SIGMA bonds and two PI bonds. The central carbon is sp-hybridized, and the two terminal carbon ATOMS are sp2-hybridized. The bond angle formed by the three carbon atoms is 180°, indicating linear geometryfor the carbon atoms of allene.

43.

Find value of equilibrium constant for cu and sn ions in aquoes solution

Answer» OUS SOLUTION of CUSO 4 CONSISTS of hydrated Cu 2+ ions in the form of pale .... * Reported values are overall formation CONSTANTS.
44.

If we know molality then how to calculate molarity

Answer»

know the moles of solute and the amount of SOLUTION, you just divide them. For EXAMPLE, if you have 0.5 moles of NaCl in 1.5 L of H2 O, the molarity is 0.5 / 1.5 L. M = 0.33 M. If you don't know the moles but you have the mass, you can still FIGURE outthe molarity by using the mole ratio.

45.

How to calculate entropy change during heat exchangers?

Answer»

s a simple equation for the entropy CHANGE of the surroundings. ΔH is the enthalpy change for the REACTION. T is the temperature. ... But entropy changeis quoted in energy units of J. That means that if you are calculating entropy change, you must MULTIPLY the enthalpy change VALUE by 1000.

46.

Henreys law definition application and limitations

Answer»

law defines that at constanttemperature, the CONCENTRATION of the GAS that is dissolved in a GIVEN liquid is proportional to the partial pressure of the gas above the fluid. The Henry's law constant is the EXPRESSION for equilibrium distribution of a compound between WATER and gaseous phase denoted by KH.

47.

Difference between chlorobenzene and cyclohexyl chloride structure

Answer»

ENZENE:: when benzene reacts with excess of CHLORINE in presence of anhydrous AlCl3 , hexachlorobenzene is obtained. All the six hydrogen atoms of benzene ring are REPLACED the electrophile Cl IONS. Cyclohexyl Chloride::: Benzene on heating with hydrogen at 458 K to 473 K in the presence of the Ni catalyst forms Cyclohexyl. i think this answer help you

48.

Explain the classification and use of antiviral drugs

Answer»

al drug. Antiviral drugs are a CLASS of MEDICATION used specifically for treating viral infections rather than bacterial ONES. Most antivirals are used for specific viral infections, while a broad-spectrum antiviralis effective against a wide RANGE of viruses

49.

Examples of sulphonic acid naming in organic chemistry

Answer»

ans can be NAMED by naming the parent compound IMMEDIATELY FOLLOWED by the word thiol. The -SH group can ALSO be named as a substituent using the group name, sulfhydryl. Mercaptans can also be named by naming the carbon group as a SEPARATE word followed by the word mercaptan.

50.

Naming of compound containing more than one acid derivatives

Answer»

ese compounds have double BONDS, making them alkenes. In example (1) the longest chain consists of six carbons, so the ROOT name of this compound will be hexene. Three methyl substituents (colored red) are present.IUPAC nomenclature is based on naming a molecule's longest chain of carbons connected by SINGLE bonds, whether in a continuous chain or in a ring. All deviations, either multiple bonds or atoms other than carbon and hydrogen, are INDICATED by prefixes or suffixes according to a specific set of priorities.