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.	HF has ___________ hydrogen bond.
Answer» intramolecular intermolecular intrastellar interstellar Answer :B

2.	Hexane from different type of product in different types of situation. Give three reaction.
Answer» SOLUTION :As per reactant.s use hexane GIVES different PRODUCTS.

3.	Hexamethylenediamine [H_(2)N(CH_(2))NH_(2)] reacts with adipic acid [HOoverset(O)overset(\|\|)C-(CH_(2))_(4)-overset(O)overset(\|\|)(C)-OH] to form dimer as: The dimer polymerises to form Nylon 6,6 as per the reaction Select the correct statement:
Answer» 290 GM of Hexamethylenediamine is required to make 610 gm of dimer. 730 gm of adipic acid is required to make 610 gm of dimer. In order to obtain 1.03 KG of Nylon-6,6 at LEAST 1220 gm of dimer is required. In order to obtain 1.13 kg of Nylon-6,6 at least 1742.9 gm of dimer is required. Answer :B::D

4.	Hexachloro benzene is obtained by addition of 'x' moles of Cl_2 with C_6H_6 in the presence of UV/500K. The value of 'x' is
Answer» 2 4 6 8 Solution :

5.	Heterolytic fission of C-C results in the formation of
Answer» FREE radical Carbanion Carbocation Carbanion and Carbocation Answer :C

6.	Heterolytic fission of C - Br bond results in the formation of
Answer» FREE radicals Carbanion Carbocation Carbanion and Carbocation Solution :Bromine ATOM is more electronegative hence TAKES AWAY ELECTRON.

7.	Heterolysis of a carbon-chlorine bond produces
Answer» TWO FREE radicals two carbocations ONE CATION and one anion two carbanions. Answer :C

8.	Heterolysis of C-Cl bond produces
Answer» TWO CARBANIONS Two carbonium ions Two free radical ONE CATION and one anion Solution :

9.	Heterocyclic compounds are ….. In nature
Answer» ALIPHATIC Aromatic Physical Inorganic Answer :C

10.	Heterolysis of a C-C covalent bond gives
Answer» Carbanion Carbonium ion Free RADICAL Both 1 and 2 Answer :D

11.	Hess's law states that
Answer» `H = E +PV` It is not possible to create or destroy energy Enthalpy CHANGE of a given chemical reaction is same whether the process OCCURS in one or more SEQUENCE of steps Total entropy of the UNIVERSE remains constant Answer :C

12.	Hess.s Law of integrate enthalpy is related to…...... ,
Answer» CHANGE in ENTHALPY of reaction. rate of reaction. equilibriums constant. effect of PRESSURE an the VOLUME of gas. Answer :A

13.	Hess's law ofheat of summatiion is based on law of conservation of energy. It has found significance in deriving heats of many reactions which either do not take place or if take place, than other side reactions also accompany it. For example heat of reaction for C+(1)/(2)O_(2) rarr CO can not be studied directly as it occurs with simultaneous reaction of oxidation of CO to CO_(2) . Bond energy is referred as heat enthalpy when a bond is broken to produce isolated gaseous atoms. In case of breaking up of bonds between unlike atoms e.g., C-H bond in CH_(4) , bond energy is referred as avarage bond energy as four C-H bonds are broken up. If C+(1)/(2)O_(2(g)) rarr CO_((g)), DeltaH =-110kJ C+H_(2)O_((g))rarrCO_((g))+H_(2(g)), DeltaH=132kJ The mole composition of mixture of steam and O_(2) and steam on being passed over coke at 1273K so that temperature remains constant is :
Answer» `0.6:1` `1.67:1` `0.3:1` `0.4:1` Solution :Let `n_(1)` MOLE of `O_(2)` and `n_(2)` mole of `H_(2)O` be used `:. 2xxn_(1)xx110=n_(2)xx1xx132` `:. (n_(1))/(n_(2))=(132)/(110xx2)=0.6:1`

14.	Hess.s law is based on
Answer» Law of CONSERVATION of MASS Gibb.s EQUATION FIRST law of thermodynamics Kirchoff.s equation ANSWER :C

15.	Heroin is a derivative of :
Answer» morphine nicotine cocaine caffeine Answer :A

16.	Here 'X' may be:
Answer» `KI_(3)(I_(2))` `H_(2)S` `HI` `SO_(2)` ANSWER :A::B::C::D

17.	Here T_(1) and T_(2) are
Answer» <P>M, P, B, P B.P, B.P B.P, M.P M. P, M.P Solution :at MP and BP, ENTROPY INCREASES at CONSTANT T.

18.	Here salt 'X' may be:
Answer» `NaCI` `NaBr` `NaI` NONE of these Answer :A::B::C

19.	Here paragraph is given Based upon this paragraph some mutiple choice question are given.Each question has 4 choices A,B,C and D.out of which one is correct the correct option. Paragraph//Comprehension-I Whick of the following is /are not the source of pollution of sea water
Answer» DISCHARGE of urboan sewage,SILT,plasitcs Flow of pesticides and dimp[ed toxic chemical from aland fFrom BEACH TOURISM DISCHARGING sanitary and kitchen waste into sea all the above three Answer :D

20.	Here paragraph is given Based upon this paragraph some mutiple choice question are given.Each question has 4 choices A,B,C and D.out of which one is correct the correct option. Paragraph//Comprehension-I Oil spilt is
Answer» processs of mixing soil or rock SALT in to WAER SPREADING of oil into sea water thick LAYER on the surface of sea water None of the above ANSWER :B

21.	Here paragraph is given Based upon this paragraph some mutiple choice question are given.Each question has 4 choices A,B,C and D.out of which one is correct the correct option. Paragraph//Comprehension-I Major source of oil pollution of sea water is
Answer» WRECKAGE of OIL tankers in OPEN sea human excreta, soaps and detergents Industrial EFFLUENTS None of the above Answer :A

22.	Here each question statements given in two columns which have to be matched. Statements in column I are labelled as A, B, C and D whereas statements in column II are labelled as p, q, r and s. The answers to these question are to be appropriately bubbled as illustrated in the following example. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p then the correctly labelled 4 xx 4 matrix should look like as given below.
Answer» ANSWER :`(##DIN_OBJ_CHM_V02_C6_1_E01_530_A01##)`

23.	Here each question statements given in two columns which have to be matched. Statements in column I are labelled as A, B, C and D whereas statements in column II are labelled as p, q, r and s. The answers to these question are to be appropriately bubbled as illustrated in the following example. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p then the correctly labelled 4 xx 4 matrix should look like as given below.
Answer» ANSWER :`(##DIN_OBJ_CHM_V02_C6_1_E01_531_A01##)`

24.	Here each question contains statements given in two colums which have to be matched. Statements in column I are labelled as A, B, C and D whereas the statement is column II are labelled as p, q, r and r. The answers to these questions are to be appropriately bubbled as illustrated in the following example If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q, " and " D-p then correctly labelled 4 xx 4 matrix should look like the following
Answer» ANSWER :`(##DIN_OBJ_CHM_V01_C3_1_E01_394_A01##)`

25.	Here each question contains statements given in two colums which have to be matched. Statements in column I are labelled as A, B, C and D whereas the statement is column II are labelled as p, q, r and r. The answers to these questions are to be appropriately bubbled as illustrated in the following example If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q, " and " D-p then correctly labelled 4 xx 4 matrix should look like the following
Answer» ANSWER :`(##DIN_OBJ_CHM_V01_C3_1_E01_393_A01##)`

26.	Here each question contains statements given in two columns which have to the matched. Sttements in column I are labelled as A, B, C and D whereas statement in column II are labelled as p,q,r and s. The answers of these questions are to appropriatly bubbled as illustrated with the following example. If the correct matches are A-p, A-r, B-q, B-r, C-p, C-q and D-p, then correctly bubbled 4xx4 matrix should look likethe following.
Answer» SOLUTION :N//A

27.	Here each question contains statements given in two columns which have to the matched. Sttements in column I are labelled as A, B, C and D whereas statement in column II are labelled as p,q,r and s. The answers of these questions are to appropriatly bubbled as illustrated with the following example. If the correct matches are A-p, A-r, B-q, B-r, C-p, C-q and D-p, then correctly bubbled 4xx4 matrix should look likethe following.
Answer» SOLUTION :N//A

28.	Here each question contains statements given in two columns which have to be matched. Statements in Column I are labelled as A, B, C and D whereas the statements the Column II are labelled as p, q,r and s. The answers to these questions are to be appropriately bubbled as illustrated below in the following example. If the correct matches are a-p, A-s, B-q, B-r, C-p, C-q and D-p, their correctly labelled 4 xx 4 matrix should look like :
Answer» ANSWER :`(##DIN_OBJ_CHM_V03_C14_1_E01_258_A01##)`

29.	Here each question contains statements given in two columns which have to be matched. Statements in column I are labelled as A,B,C and D where as statements in column II are labelled as p,q,r and s. The answers to these questions are to be bubbled 4xx4 matrix. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then corretly bubbled matrix should look like this following. Match the following
Answer» ANSWER :A::B::C::D

30.	Here each question contains statements given in two columns which have to be matched. Statements in Column I are labelled as A, B, C and D whereas the statements the Column II are labelled as p, q,r and s. The answers to these questions are to be appropriately bubbled as illustrated below in the following example. If the correct matches are a-p, A-s, B-q, B-r, C-p, C-q and D-p, their correctly labelled 4 xx 4 matrix should look like :
Answer» ANSWER :`(##DIN_OBJ_CHM_V03_C14_1_E01_259_A01##)`

31.	Here each question contains statements given in two columns which have to be matched. Statements in column I are labelled as A,B,C and D where as statements in column II are labelled as p,q,r and s. The answers to these questions are to be bubbled 4xx4 matrix. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then corretly bubbled matrix should look like this following. Match the following
Answer» ANSWER :A::B::C::D

32.	Here each question contains statements given in two columns which have to be matched. Statements in column I are labelled as A,B,C and D where as statements in column II are labelled as p,q,r and s. The answers to these questions are to be bubbled 4xx4 matrix. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then corretly bubbled matrix should look like this following. Match the following
Answer» ANSWER :A::B::C::D

33.	Here each question contains statements given in two columns which have to be matched. Statements in column I are labelled as A,B,C and D where as statements in column II are labelled as p,q,r and s. The answers to these questions are to be bubbled 4xx4 matrix. If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then corretly bubbled matrix should look like this following. Match the following
Answer» ANSWER :A::B::C::D

34.	Here each question contains statements are given in two columns which have to be matched. Statements in Column I are labelled as A,B,C and D whereas statements in Column II are labelled as p,q,r and s. The answer to these questions are to ne appropriately bubbled as illustrated below in the following example. If the correct matches are A-p,A-s,B-q,B-r,c-p,c-q,and D-p then correctly labelled 4 xx 4 matrix should look like {:(,"Column-I",,"Column-II"),("(A)","Activation energy","p",H_(P)=H_(R)),("(B)","Threshold energy","q","Height of the barrier"),("(C)","Heat of reaction","r","Negative for exothermic reaction"),("(D)","Role of catalyst","s","Activated complex"):}
Answer» ANSWER :`(##DIN_OBJ_CHM_V01_C3_3_E01_359_A01##)`

35.	Here each question contains statement given in two columns which have to be matched. Statements in column I are labelled as A, B, C and d. Whereas statements in column II are labelled as p, q, r and s. The answer to these question have to be appropriately bubbled as illustrated in the following example.If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then the correctly bubbled 4 xx 4 matrix should look like the following.{:(,"Column I",,"Column II",),((A),"Plaster of Paris",p,"Soluble",),((B),"Washing soda",q,"Compound of group 2",),((C ),"Baking soda",r,"used in statues, chalk",),((D),"Caustic soda",s,"Compound of group I",):}
Answer» ANSWER :`(##DIN_OBJ_CHM_V03_C12_1_E01_364_A01##)`

36.	Here each question contains statement given in two columns which have to be matched. Statements in column I are labelled as A, B, C and d. Whereas statements in column II are labelled as p, q, r and s. The answer to these question have to be appropriately bubbled as illustrated in the following example.If the correct matches are A-p, A-s, B-q, B-r, C-p, C-q and D-p, then the correctly bubbled 4 xx 4 matrix should look like the following.{:(,"Column I",,"Column II",),(A,"Sodium",p,"Metal",),(B,"Potassium",q,"s-block",),(C,"calcium",r,"Ionic hydride",),(D,"strontium",s,"Inert solvent",):}
Answer» ANSWER :`(##DIN_OBJ_CHM_V03_C12_1_E01_363_A01##)`

37.	Here each question contains statement given in two columns which have to be matched statements in column I are labelled as A,B,C andD where as the statement in columns II are labelled as p,q,rand s .Tjhe answers to these questions areto be appropriately labelled as illlustrated in the following example If the correct matches are A-p,A-s,B-q,B-r,C-p,C-q and D-p then correctly labelled matches should look like the following
Answer» ANSWER :A::B::C::D

38.	Here each question contains statement given in two columns which have to be matched statements in column I are labelled as A,B,C andD where as the statement in columns II are labelled as p,q,rand s .Tjhe answers to these questions areto be appropriately labelled as illlustrated in the following example If the correct matches are A-p,A-s,B-q,B-r,C-p,C-q and D-p then correctly labelled matches should look like the following
Answer» ANSWER :A::B::C::D

39.	Here each question contains statement given in two columns which have to be matched statements in column I are labelled as A,B,C andD where as the statement in columns II are labelled as p,q,rand s .Tjhe answers to these questions areto be appropriately labelled as illlustrated in the following example If the correct matches are A-p,A-s,B-q,B-r,C-p,C-q and D-p then correctly labelled matches should look like the following
Answer» ANSWER :A::B::C::D

40.	Herbicides are
Answer» `NaCO_(3)` `Na_(3)AsO_(3)` Both 1 & 2 DDT Answer :C

41.	Henry's law constants for O_(2) and N_(2) are : k_(O_(2))=3.3xx10^(7)mk_(N_(2))=6.51xx10^(7) Calculate the ratio of (x_(O_(2)))/(x_(N_(2))), i.e., the ratio of mole fractions of O_(2) and N_(2) dissolved in water at 25^(@)C from air :
Answer» 0.62 0.92 0.42 0.52 Answer :D

42.	Henry thinks that a mole contains 6.023 xx 10^(24) molecules. Hence the mass of Henry's mole of Nitrogen is
Answer» 2.8g 28g 280g 0.28g Answer :C

43.	Henry's law constant for solubility of methane In benzene is4.2xx 10^(-5) mm Hg at a particular constant temperature At this temperature calculate the solubility of methane at (i) 750 mm Hg (ii) 840 mm Hg
Answer» Solution :`(K _(H))_("BENZENE")= 4.2 xx 10 ^(5) MM Hg,` Solubility of mehhane = ? P = 750 mm Hg. P = 840 mm Hg According to Henry.s Law. `P = K _(11) X _("solution")` 750 mm Hg `= 4.2 xx 10 ^(-5) mm HG . x _("solution")` `implies x _("solution") = (750)/( 4.2 xx 10 ^(-5))` i.e., solubility `= 178.5 xx 10 ^(5)` Similary at `P = 840 mm Hg` Solubility `= (840)/( 4.2 xx 10 ^(-5)) = 200 xx 10 ^(-5)`

44.	Hema attached to the __________molecule.
Answer» HYDROGEN OXYGEN PROTEIN WATER

45.	Helium nucleus is composed of two protons and two neutrons if the atomic mass is 4.00388, how much energy is released when the nucleus is constituted? (Mass of proton =1.00757, mass of neturon=1.00893)
Answer» 283MeV 28.3 mEv 2830 MeV 2.83 MeV Answer :B

46.	Helium is used in balloons because-
Answer» It is radioactive It is more REACTIVE than `H_2` It is Incombustible It is LIGHTER then `H_2` ANSWER :C

47.	Helium is often found with methance, CH_(4). How do the diffusion rates of helium and methane compare at the same temperature? Helium diffuses:
Answer» SIXTEEN times as FAST as methane. four times as fast as methane. twice as fast as methane. at the same RATE as methane. Answer :C

48.	Helium diffuses more than air. Give reason.
Answer» Solution :Take two BALLOONS, ONE is filled with air and another with helium after one day, the helium balloon was SHRUNK, because helium being lighter DIFFUSES out FASTER than the air.

49.	Helium diffuses 4 times faster than an unknown gas under similar conditions. Find the vapour density of unknown gas.
Answer» SOLUTION :RATIO of rates of diffusion of helium and unknown gas is given as, `(r_(1))/(r_(2)) = sqrt((VD_(2))/(VD_(1))) (or) (4)/(1) = sqrt((VD_(2))/(2))` `VD_(2) = 2xx 4^(2) = 32` vapour density of unknown gas = 32

50.	Helium atom is two times heavier than a hydrogen molecule at 298 K, the average kinetic energy of helium is
Answer» two times that of hydrogen MOLECULES same as that jof hydrogen molecules FOUR times that of hydrogen molecules half that of hydrogen molecules ANSWER :b