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.

In which of the following conditions, the distance between the molecules of hydrogen gas would increase? (i) Increasing pressure on hydrogen contained in a closed container (ii) Some hydrogen gas leaking out of the container (iii) Increasing the volume of the container of hydrogen gas (iv) Adding more hydrogen gas to the container without increasing the volume of the container (a) (i) and (iii) (b) (i) and (iv) (c) (ii) and (iii) (d) (ii) and (iv)

Answer» RECT ANSWER is OPTION C
2.

5 .Which measure of central tendency is used in the following situations?(mean, median, mode)i.The amount you pay against electricity per month in a year.The pharmacists to place order for a particular size of mask.The average amount contributed by 50 families for Corona relieffund.Favourite subject of students of class IX.Based on a rating given between numbers 1-5, by 10 audience,a singer is selected if majority of the rating is 3 and above, elserejected.The team which has won the football championship most oftenin the last 10 years.​

Answer»

tion:Arithmetic Average (Mean):Mean is calculated when data are complete and presented on equal interval scale. The arithmetic average or mean is quite simple and most widely used and is hence called ‘Common Average’ or even simply ‘Average’. It is a measure of central value. It is a method of representing whole data by one figure and takes into consideration all the ITEMS. Mean provides an accurate description of the sample and indirectly, that of population.ADVERTISEMENTS:It is the SUM of measurements DIVIDED by their number. Mean of a distribution of scores may be defined as the point on the scale of measurement obtained by dividing the sum of all the scores by the number of scores.In other words arithmetic mean is the sum of the separate scores or measures divided by their number. If a man earns Rs. 300, Rs. 400, Rs. 450, Rs. 500 and Rs. 550 on five successive DAYS,his mean daily wage (Rs. 440) is obtained by dividing the sum of his daily earnings by the number of days he has worked.The formula for the mean (M) of a series of ungrouped measures is:where ∑ mean sum total of,ADVERTISEMENTS:N is the number of measures in the series,X stands for a score or other measure.Calculation of Mean from Ungrouped Data:The arithmetic mean for ungrouped data can be calculated by using any of the following two methods:ADVERTISEMENTS:i. Direct method.ii. Short-cut method.(a) Direct Method:In case of ungrouped data we are always given some measurements on a variable X say X1, X2, X3 ……………………… Xn are ‘n’ items then the arithmetic mean (x) of these items is equal toADVERTISEMENTS:where x = Meann = No of itemsX = Score

3.

State Joule's law of heating, in not more than 25 words​

Answer»

it STATES that the heat produced is equal to the product of SQUARE of CURRENT, resistance of circuit and timeH = I²RT

4.

Which among the following compound has minimum ph value? a) Butane b) 2-butene c) 1-butyne d) 2-butyne

Answer»

a) BUTANE.IHOPE IT HELPS YOU MATE.

5.

32. Name the processes A, B, C, D, E and F in the following diagram that shows the change in the states of matter.Increase sealandecrease ressure11LIQUIDGBitsDecebal and increase pressure​

Answer»

liquidExplanation:it is STATES of MATTER LESSON

6.

The answer to the question below should include the proper sign. Given the reaction: Na(g) + O2(g)+ 182.6 kJ 2NO(g) What is the heat of formation of nitrogen (II) oxide in kJ/mole?

Answer»

dkejcejvekvkrckqdkvjexjwdkeckefkwfkwdwkfkakefsfkskfkskgfwkExplanation:lkajsjsjdjdjdjjdxjjxxjxjjccjchcjchcncnnc

7.

List the theproperties of light​

Answer»

reflectionRefractionInterferenceDiffractionPhotoelectric effectExplanation:

8.

suppose your mother ask you give me one mole of sodium chloride how much salt is given by you to mother ​

Answer»

e = 6.023 X 10²³ ATOMS or 114 grams . So I will GIVE my mother one mole i.e. 114 grams of salt . Fun fact : In fact no one knows what a mole is , never TRY asking a vendor give me 1 mole of salt

9.

35. i) Draw a labelled diagram to show how you would separate a substance from a mixture by the technique of evaporation.i) Give an example of a mixture that would be separated by this technique.m What would you see when the solvent evaporates?iv) How will you increase the rate of evaporation?​

Answer»

I don't know plz eassy QUESTIONEXPLANATION:I LOVE free FIRE L

10.

Write the chemical formulae of nitride.

Answer»

The ANSWER for this QUESTION is mateN3-I HOPE it HELPS uExplanation:

11.

Pls answer this question. tq​

Answer» TION:truefalsetruehere the ANSWER is
12.

6. Which one of these distributions is more important in the design of dosageforms?A. GaussianB. NormalC. NumberD. Weight​

Answer» CORRECT OPTION is D.) WEIGHTHope it's HELPFUL............EXPLANATION:
13.

In chemistry gulucose (C6 H12 O6)in gram molar mass

Answer» PLEASE FIND the ANSWER of this QUESTION on GOOGLE
14.

33. What is a physical change? Explain with an example.​

Answer»

Physical CHANGES are changes affecting the form of a chemical substance, but not its chemical composition. ... In GENERAL a physical change is REVERSIBLE using physical means. For example, salt dissolved in WATER can be recovered by allowing the water to evaporate.Hope this HELPS!!!!!!!!!

15.

Which of the following has –O–O– linkage (a)H2 S2O6 (b) H2 S2O8 (c) H2 S2O3 (d) H2 S4O6

Answer» C). H2 S2O36Explanation:PLEASE MARK me as BRANILIST
16.

Q2. Assertion: Gases can be easily compressed Reason: These have least intermolecular interactions. (a) Assertion is correct and reason is correct (b) Assertion is correct and reason is wrong (c) Assertion is wrong and reason is correct (d) Assertion is wrong and reason is wrong

Answer»

a) Both ASSERTION and reason are CORRECT. HOPE YOU UNDERSTOOD THE ANSWER AND FOLLOW ME AND MARK AS BRAINLIST ANSWER...

17.

DATE PAGE NO3. whichof the following is a combination reactionCl2 + 2kLs 2KCL +l22K + Cl2 2KCL​

Answer» 2 ONE is the COMBINATION REACTION
18.

How is hydrogen peroxide prepared in laboratort​

Answer»

tion:Hydrogen peroxide is prepared by the ELECTROLYSIS of 30% ice-cold H2SO4. When ACIDIFIED sulfate solution is electrolyzed at high current density, peroxodisulphate is obtained. Peroxodisulphate is then hydrolyzed to GET hydrogen peroxide.

19.

Differentiate between animal and plants fibre ? Give example of each

Answer» FIBERS OBTAINED from plant SOURCES are called plant fibers.Example: COTTON and JuteFibers obtained from animals are ANIMAL fiber.Example: Wool and SilkHope this helps you
20.

A. i.b.2. Do as directed.Write IUPAC name of the followingcompoundsa. CH-CH=C-CH-BrH, CH,Corgiva. Cb. CH-CH-CH-CH-CH,CỦ CH,b.CCICIC.d.CH,C.CHCI​

Answer»
21.

Why we often sprinkle water on the road in summer

Answer»

We SPRINKLE water on roads in summers because when the SPRINKLED water EVAPORATES it TAKES from the road and surrounding latent heat of VAPORIZATION leaving the surrounding cool.Hope this Helps!!!!

22.

What is the S1 unit of mass? How is it defined​

Answer»

tion:The SI UNIT of mass is the kilogram (KG). In science and technology, the weight of a body in a particular REFERENCE FRAME is defined as the force that gives the body an acceleration equal to the local acceleration of free FALL in that reference frame.mark as BRAINLIST

23.

What is the sphere of life​

Answer»

Most importantly, it has MEANT a GROWING awareness of multiple choices in every sphere of life, including that of RELIGION.

24.

WHAT IS THE ESSENTIAL FACTOR NEEDED FOR THE SUBSTITUTION OF CHLORINE IN METHANE?

Answer»

t ESSENTIAL FACTOR is to have CHLORINE and METHANE.

25.

Given the reaction at equilibrium: C(s) + O2(g) → CO2(g) + heat Which stress on the system will increase the concentration of CO2(g)? increasing the temperature increasing the concentration of 02(g) decreasing the pressure on the reaction decreasing the amount of C(s)

Answer»

Increase in TEMPERATURE and decrease in volume:As increase in temp. shifts backward but decrease in volume shifts FORWARD.Addition of CO and increase in temperature at constant volume:As addition of CO shifts reaction forward but increase in temp. shifts it backward.According to-LE-CHATELIER'S PRINCIPLE : According to this principle. If a system at equilibrium is subjected to a CHANGE of concentration, PRESSURE or temperature, the equilibrium is shifted in such a WAY as to nullify the effect of change. (a)Change in concentration : In an equilibrium increasing the concentrations of reactants results in shifting the equilibrium in favour of products while increasing concentrations of the products results in shifting the equilibrium in favour of the reactants.

26.

Which is dependent on temperature

Answer»

Er ❤️➡️Molarity and normality are temperature DEPENDENT because they involve volume of solutions. Volume is dependent on temperature. MOLALITY, mole FRACTION and weight percentage does not depend on temperature because they involve masses of solute and SOLVENT..!!Hope it's HELPS U..☺️✌️

27.

The complex Co(NH3)3 Cl3 is

Answer»

the question is incompleteExplanation:if you're asking the IUPAC nomenclature of the complex, it's CALLED tri amino Tri chlorido cobalt(3) depending on the position of CL i.e if it's inside the complex SPHERE or outside the sphere

28.

1 moleglucose is added to 1L of water .KbH2O =0.512 k g/mol boiling point of solution will be

Answer» MARK me a s BRAINLEIST ....EXPLANATION:PLZZZZZ.....
29.

Its urgent..fast.....​

Answer»

9.oxygen,CHLOROFORM,sodium chloride.Explanation:these PARTICLES are increasing ORDER of FORCE of attraction....

30.

Suppose your mother ask you give me one mole of sodium chloride? How much salt is given by you to mother​

Answer» 1 MOLE of SODIUM CHLORIDE is 85.5 GM
31.

In which furnance there is no direct contact with hearth and firebox​

Answer» FURNACE is the furnace in which there is no DIRECT CONTACT with HEARTH and FIREBOX
32.

pls ans me i will mark u as brainliest pls dont tell that i dont know and give absurd answer like that pls if u dont know its ok leave it let others to answer plss....

Answer»

Explanation:REDOX REACTION: A reaction in which OXIDATION and reduction OCCURS SIMULTANEOUSLY.

33.

How can you obtain pure water from a salt-water mixture (or salt solution)?Draw a neat and labelled diagram of the apparatus you would use to obtain pure water from a salt-water mixture (or salt solution). plzz ans fast.... it's very important...(´∩。• ᵕ •。∩`) ​

Answer»

We can obtain pure water from a SALTWATER MIXTURE (or SALT solution) by the PROCESS of distillation. Important steps underlying the process are as follows: The salt water mixture is taken in a distillation flask and heated subsequently. On HEATING, water vapours are formed that rise up and come through the side tube B.

34.

I A solvent and its solution containing angnvolatile soluteare separated by a semipermallmembrane. Does the flow ofsolvent occur in both directionsComment giving season.​

Answer»

Yes, it'll flow from both the sides but more from higher CONCENTRATION of it to the side of LOWER concentration.....it'll STOP eventually when equilibrium will set up. I hope it helped you..... mark my answer as brainliest...

35.

Calculate the percentage of hydrogen and oxygen in urea (NH2CONH2)

Answer»

lecular weight of NH₂CONH₂ is 60G% of nitrogen = (Weight of nitrogen in COMPOUND / Weight of compound) × 100= ((2 × 14) / 60) × 100= 46.67%% of nitrogen in urea is 46.67%please mark it as brainlist ANSWER

36.

FIRST TO CORRECTLY ANSWER WITH EXPLANATION WOULD BE MARKED AS BRAINLIEST. 124 g of phosphorus vapour has same volume as 71 g of chlorine gas at the same temperature and pressure What is the formula of a molecule of phosphorus ? ​

Answer» FORMULA of PHOSPHORUS is P₄Explanation:Hey BUDDY!!Phosphorus has a TETRAHEDRAL shape and has the formula P₄. Its molecular model is somewhat like this:You can ASK me something else remainingHope it helps.....
37.

What is used as flux in mettalurgy

Answer»

, doromite , LIME ,........

38.

सल्फर ठोस है जबकि ऑक्सीजन गैस क्यों ?

Answer»

is HELPS uh❤️.. can i GET BRAINLIEST PLZZ???❤️

39.

pls ans me i will mark u as brainliest dont tell that i dont know like that pls if u dont know its ok leave it let others to answer plss....

Answer»

me, the PIC is little BLUR. Please post a PROPER pic.

40.

A solvent and its solution containing a nonvolatile solute are separated by a semipermable membrane. Does the flow of solvent occur in both directions? Comment giving reason. ki​

Answer»

Pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent ACROSS a semipermeable membrane.[1] It is also defined as the measure of the tendency of a solution to take in pure solvent by osmosis. Potential osmotic pressure is the maximum osmotic pressure that could DEVELOP in a solution if it were separated from its pure solvent by a semipermeable membrane.Osmosis occurs when two solutions containing different concentrations of SOLUTE are separated by a selectively permeable membrane. Solvent molecules pass PREFERENTIALLY through the membrane from the low-concentration solution to the solution with higher solute concentration. The transfer of solvent molecules will continue until equilibrium is attained.[1][2]

41.

Chemistry work chapter : salts only attend 4.) and 6.) ​

Answer»

I don't KNOW this ANSWER

42.

Pick the iupac name of the given compound with explanation please. ​

Answer»

it MUST be d OPTION cyclopentylpentane

43.

Pick the correct IUPAC name of the compound given below​

Answer» LIC structure is to be given more PRIORITY when the number of carbons are same,So we NAME it as Pentyl cyclopentane
44.

Explain the terms with examples5. Mixed salt​

Answer»

ALT :Mixed salt is a salt MADE from more than one base or acid . It is an INORGANIC compound that consists of a FIXED PROPORTION of TWO salts often sharing either common cation or a common anion . EXAMPLES: sodium potassium sulphate , bleaching powder ,......

45.

Q8:- Which element has (a) two shells, both of which are completely filled with electrons ? (b) The electronic configuration 2, 8, 2?ਕਿਸ ਤੱਤ ਵਿੱਚ (ਉ) ਦੋ ਸੈੱਲ ਹੁੰਦੇ ਹਨ ਅਤੇ ਦੱਵੇਂ ਇਲੈੱਕਟਾਨਾਂ ਨਾਲ ਪੂਰੇ ਭਰੇ ਹੁੰਦੇ ਹਨ?(ਅ) ਇਲੈੱਕਟਾਨੀ ਤਰਤੀਬ 2, 8,2 ਹੈ?​

Answer»

is the element which has TWO SHELLS both of which are COMPLETELY filled with electrons

46.

Can anyone help me with this question...if yes ...please share with us...​

Answer»

in CONTAINS high amount of acids particularly sulphuric ACID & CARBON monoxide. it is caused when the RAIN drop pass through the pollutes ATMOSPHERE

47.

Derivation of magnetic iron oxide (Fe3O4) where Fe=2+ and O= 2-​

Answer»

tion:generally Fe3o4 is a mixed oxide,composed of two OXIDES Feo and Fe2o3 In Feo oxidizing state is +2 In Fe2o3 oxidizing state is +3 THEREFORE for calculating oxidizing state of Fe3o4 we TAKE the averages of both constituent oxides therefore o.s of Fe3o4 is 3+2/2=2.5also you could recognise that Feo+Fe2o3=Fe3o4 (in terms of NUMBER of atoms) I hope you understand this

48.

The mass percentage of Fe3+ ion present in Fe..93 O..1.00(1) 15%(2) 5.5%(3) 10.0%(4) 11.5%​

Answer»

I HOPE this will HELP u.Mark it as BRAINLIST.

49.

How it is 4 unpaired electron

Answer»

I don't KNOW what is the ANSWER

50.

Write your question here (Keep it simple and clear to get the best answer)what's elements

Answer»

In chemistry an element is a SPECIES of atom having the same NUMBER of protons in its atomic NUCLEI. For example, the atomic number of oxygen is 8, so the element oxygen describes all atoms which have 8 protons. In total, 118 ELEMENTS have been identified.