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.	Maximum number of covalent bonds formed by N and P are
Answer» 3,5 3,6 3,4,5 3, 4, 6 Solution :Due to abesnce of d-orbitals, N has a MAXIMUM covalency of 3 but due to presence of d-orbitals, P, has a maximum covalency of 5.

2.	Maximum number of atoms present in same plane of benzene molecule
Answer» 6 10 12 4 ANSWER :C

3.	Maximum number of active hydrogens are present in
Answer» ACETIC ACID GLYCEROL Methane Methanol Solution :Glycerol

4.	Maximum heat of formations is shown by
Answer» `Be(OH)_(2)` `MG(OH)_(2)` `CA(OH)_(2)` `Ba(OH)_(2)` Answer :4

5.	maximumnumberelectronsin asubshellwithl =3 andn=4 is
Answer» 10 12 14 16 Answer :C

6.	Maximum -I effect is exerted by the group
Answer» `-C_(6)H_(5)` `-OCH_(3)` `-CL` `-NO_(2)` Answer :D

7.	Maximum enolisation takes place in :
Answer» `CH_(3)COCH_(3)` `CH_(3)COCH_(2)CHO` `CH_(3)COCH_(2)COCH_(3)` Solution :`alpha-H.s on SATURATED .C. Paticipated in Tautomerism.

8.	Maximum enol content is
Answer» Solution :As compared to simple aldehydes/ketones, 1-3, diketones/aldehydes have higher enol content due to STABILIZATION by H-bonding. Further, enol of pentane-2, 4-dione is more stable than that of 3-oxobutanal since it has a more HIGHLY SUBSTITUTED double bond.

9.	Maximum dipole moment will be of :
Answer» `C""Cl_(4)` `CHCl_(3)` `CH_(2)Cl_(2)` `CH_(3)CL` Solution :`CH_3Cl GT CH_2 Cl_2 gt CHCl_3 gt C Cl_4 `

10.	Maximum deviation from ideal gas is expected from
Answer» `CH_(4 (G))` `NH_(3(g))` `H_(2(g))` ` N_(2 (g))` Answer :B

11.	Maximum deviation from ideal gas is expected from :
Answer» `H_(2)`(g) `N_(2)`(g) `CH_(4)`(g) `NH_(3)`(g) Solution :Out of the given GASES.`NH_(3)` is most easily liquefiable, i.e., has strongersintermolecular FORCES of attraction. HENCE, it shows maximum deviation from ideal behaviour.

12.	Maximum covalency of nitrogen is ………. .
Answer» 3 5 4 6 Solution :N atthe maximum can have 8 electrons, i.e., four PAIRS of electronos in the VALENCE shell and HENCE has a maximum covalency of 4.

13.	Maximum covalency exhibited by Carbon and Silicon respectively are
Answer» 4, 6 4, 4 6, 6 4, 8 Answer :A

14.	Maximum concentration of Ortho-H_(2) in ordinary luydrogen is
Answer» 75%ortho - `H_2` + 25% para `-H_2` 25%ortho`-H_2` + 75% para `-H_2` 50% ortho `-H_2` + 50% para `-H_2` 99% para -`H_2 ` + 10% ortho `-H_2` SOLUTION :MAXIMUM concentration of ortho hydrogen at ORDINARY temperature is 75%

15.	Max. H-bond in one molecule of water
Answer» 1 2 3 4 Solution :4 In `H_(2)O` two `- overset(-delta)(O) - overset(+ delta)(H)` bond are polar in whichboth `overset(+ delta)(H)` from hydrogen bon with `H_(2) O `. In `H_(2),O` has two lone pair which FORM hydrogen bond with two DIFFERENT `H_(2)`O TOTAL four H bond per `H_(2)O.`

16.	Matter that has neither shape nor volume is
Answer» GAS LIQUID SOLID All ANSWER :A

17.	Matter is defined as anything that has mass and occupies space. All matter is compound of atoms.
Answer» SOLUTION :

18.	Matter can neither be created nor destroyed. This statement was given by....
Answer» HENERY DALTON Lavoisier Hoffman Answer :A::C

19.	Matrix Matching problems .
Answer» Answer :[A] (a-Q,r,s)(b-r)(C-p) (d-does not match) [B] (a-q,s)(b-p,s)(c-r,s)(d-p,s) [C] (a-r,s)(b-p)(c-q)(d-q) [D] (a-q,r)(b-p,q)(c-s)(d-p,q) [E](a-q,r)(b-q,r,s)(c-p)(d-p) [F] (a-p,r)(b-q,s)(c-q,s)(d-p,r) [G] (a-q,r)(b-p)(c-s)(d-q,r) [I] (a-r,s)(b-p,s)(c-q,r)(d-p,q) [J](a-p)(b-p)(c-p,r)(d-r) [K] (a-r)(b-p)(c-q,s)(d-r) [L](a-r)(b-q)(c-p)(d-s) [M] (a-r,p)(b-r)(c-q)(d-s) [N] (a-p)(b-s)(c-p,q,r)(d-p,q) [O] (a-r,s)(b-p,q)(c-p)(d-q) [P] (a-s)(b-r)(c-p)(d-q) [Q] (a-q)(b-r)(c-p)(d-p,s) [R] (a-,q)(b-q,r)(c-r)(d-q,s)

20.	Matrix Match II
Answer» ANSWER :a-Q,R; b-q,s; c-p,q,r; d-q

21.	Mathematically , the third law of thermodynamics is expressed as _____
Answer» SOLUTION :`lim_(T to 0) S=0`

22.	Mathematical form of Dalton.s Law of Partial Pressure.
Answer» Solution :Dalton.s law : The law was formulated by John Dalton in1801. ..It states that the total pressure exerted by the mixture of non - REACTIVE gases is equal to the sum of the partial pressures of INDIVIDUAL gases... i.e., the pressures which these gases would exert if they were enclosed separately in the same volume and under the same conditions of temperature. Partial pressure (p) : In a mixture of gases, the pressure exerted by the individual gas is CALLED .Partial pressure.. Mathematical formula of Dalton.s Law of partial pressure : Where `p_("Total")` is the total pressure exerted by the mixture of gas and `p_(1), p_(2), p_(3)` etc. are partial pressures of gases. `p_("Total")=p_(1)+p_(2)+p_(3)+.....` (at constant T and V)..... (Eq.-i) Pressure of DRY gas :Gases are generally COLLECTED over water and therefore are moist. So we have to obtained pressure of dry gas. `(("Pressure of"),("Dry gas"))=(("Total pressure of"),("moist gas contains"),("water vapour"))-(("Vapour pressure"),("of water"))` `therefore p_("Dry gas")=(p_("Total")-p_("Aqueous tension"))` ....(Eq.-ii) Aqueous tension : Pressure exerted by saturated water vapour is called .aqueous tension.. Aqueous tension of water at different temperature is given in table. Necessity to follow Dalton.s law : (i) Gases of Mixture are do not react with each other chemically (ii) Temperature and pressure of different gases remains same.

23.	Give the mathematical formulation of first law of thermodynamics.
Answer» `C_v = aT^3` `DeltaS_("TOTAL") = DeltaS_(sys) + DeltaS_(sur)` `q = DELTAU + W` `DeltaS_(sys) = (qrev)/T` Answer :C

24.	Mathc thespecies given in Column I with the properties mentioned in Column II.
Answer» ANSWER :A::B::C::D

25.	Mathc the column- {:("Column I" ("For the production of " H_(2)O_(2)),,"Column II"),("(A) " BaO_(2).8H_(2)O,,"(p) Reduction and oxidation"),("(B) " Na_(2)O_(2),,"(q) reacts with NaOH"),("(C) " H_(2)SO_(4),,"(r) electrolysis then hydrolysis"),("(D) Ethyl derivative of anthraquinone",,"(s) Reacts with " H_(2)SO_(4)):}
Answer» SOLUTION :N//A

26.	Math the following columns :
Answer» SOLUTION :N//A

27.	Math the following: {:((a)"Molecular mass of a volatile organic solid",1."Silver salt method"),((b)"Molecular mass of a nonvolatile organic solid",2."Liebig method"),((c)"Estimation of chlorine in carbon tetrachloride",3."Platinichloride method"),((d)"Estimation of nitrogen in aniline",4."Victor Meyer's method"),((e)"Equivalent mass of an organic acid",5."Depression in freezing point"),((f)"Equivalent mass of an organic base",6."Carius method"),((g)"Estimation of carbon and hydrogen in an organic compound",7."Kjeldahl's method"):}
Answer» ANSWER :`(a-4); (b-5); (c-6); (d-7); (c-1); (f-3); (g-2)`

28.	Matching the isotopes of hydrogen (and compounds) in Column I with theirproperities given in Column II and mark the correct option from the codes given below,
Answer» ANSWER :A-S,B-P,C-S,D-Q

29.	Matching the following
Answer» ANSWER :A-R,B-P,C-S,D-Q

30.	Matching the following
Answer» ANSWER :A-Q,B-S,C-P,D-R

31.	Match type of the salt formed with the appropriate reaction. {:(,"Column-I (Reaction)",,"Column-II (Type of Salt)"),("A)","1 mole of oxalic acid +1 mole of NaOH","P)","Mixed salt"),("B)","1 mole of "H_(3)PO_(2)+1" mole KOH","Q)","Basic salt"),("C)","1 mole of "Ca(OH)_(2)+1" mole of HCl","R)","Acid salt"),("D)","Dry slaked lime "+Cl_(2),"S)","Normal salt"):}
Answer» Solution :A) `rarrunderset("COOH")underset("\|")(COONa)` Acidic SALT B) `rarrKH_(2)PO_(2)` NORMAL salt C) `rarrCa(Cl)OH` Basic salt D) `rarrCaOCl_(2)` Mixed salt (BLEACHING powder)

32.	Matchihgcolumn -IColumn -II
Answer» <P>`{:(P,Q,R,S),(1,2,4,3):}` `{:(1,4,2,3):}` `{:(1,3,2,4):}` `{:(1,2,3,4):}` ANSWER :4

33.	Match the water pollutants given in Part-1 with their source given in Part-2
Answer» SOLUTION :(A-3),(B-4) ,(C-1),(D-2)

34.	Match the uses of the metal aluminium given in column I with its properties given in column II and mark the appropriate choice. {:("Column I","Column II"),((A)"Transmission cable",(i) "High malleability"),((B)"Aircraft body",(ii)"High electrical conductivity"),((C )"Packing industry",(iii)"High thermal conductivity"),((D) "Utensils",(iv) "Light and tough alloys"):}
Answer» (A) `to` (II), (B) `to` (i), (C )`to` (iii), (D) `to` (iv) (A) `to` (iv), (B) `to` (iii), (C ) `to` (ii), (D) `to` (i) (A) `to` (ii), (B) `to` (iv), (C ) `to` (i), (D) `to` (iii) (A) `to` (iii), (B) `to` (iv) , (C ) `to` (i), (D) `to` (ii) ANSWER :C

35.	Match the underlined element in the compound in column-I with its oxidation state in column-II
Answer» SOLUTION :`{:(H_(2)ulS_(2)O_8,-+6,H_2ulSO_4,-+6),(CaOulCl_(2),-+1,(CH_3)_(2)ulSO,-0):}`

36.	Match the types of defect given in Column I with the statement given in Column II. {:( " Column I "," Column II"),( " (i) Impurity defect " , "(a) NaCl with anionic sites called F-centres " ),( " (ii) Metal excess defect" , "(b) FeO with " Fe^(3+)),( "(iii) Metal deficiency defect " ,"(c) NaCl with" Sr^(2+) " and some cationic sites vacant"):}
Answer» Answer :` (i) to d, (II) to C, (III) to b, (iv) to a `

37.	match the type of unit cell given in Column I with the features given in Column II. {: (" Column I " ," Column II") ,( " (i) Primitive cubic unit cell " , " (a) Each of the three perpendicular edges compulsorily have the different edge length i.e," a ne b b ne c ), ( "(ii) Body centred cubic unit cell" , " (b) Number of atoms pe unit cell is one" ) , ( "(iii) Face centred cubic unit cell " , ( c) "Each of the three perpendicular edges compulsorily have the same edge length , i.e, , a = b = c " ), (" (iv)End centred orthorhombic unit cell " , "(d) In addition to thecontribution from the corner atoms the number of atoms persent in a unit cell is one " ) , (, " (e) In addition to the contribution from the corner atoms the number of atoms present in a unit cell is three"):}
Answer» ANSWER :` (i) to C, (II) to a, (III) to B `

38.	Match the type of packing given in Column I with the items given in Column II {:( " Column I " , "Column II") , ( "(i) Square close packing in two dimensions" , "(a) Triangular voids" ),( "(ii) Hexogonal close packing in two dimensions " , "(b) pattern of spheres is repeated in every fouth layer") , ( " (iii) Hexongaonal close packing in three dimensions" , "(c) Coordination number 4" ),( " (iv) Cubic close packing in three dimensions " , "(d) Pattern of sphere is repeated in alternate layers"):}
Answer» Solution :SIMPLE vacancy defect and simple intersitial defgect OCCUR in non-ionic solids. In the FORMER, some lattice sites are vacant. Hence, DENSITY decreases. In the latter, some extra constituent paricles are present in the intersitial sites. Henc,e density increases

39.	Match the type of mixture of compounds in Column I with the technique of separation/purification given in Column II.
Answer» Answer :(a)-(V); (B) (IV); (c)-(i); (d)-(ii); (E)-(iii)

40.	Match the terms mentioned in Column I with terms in Column II. {:(,"Column I",,"Column II",),((a),"carbocation",(i),"Cyclohexane and hex-1-ene",),((b),"Nucleophile",(ii),"Conjugation of electrons of C - H "sigma" bond with empty p-orbital present at adjacent positively charged carbon ",),((c ),"Hyperconjugation",(iii),Sp^(2)" hybridised carbon with empty p-orbital",),((d),"Isomers",(iv),"Ethyne",),((e),"sp hybridisation",(v),"Species that can receive a pair of electrons",),((f),"Electrophile",(vi),"Species that can supply a pair of electrons",):}
Answer» ANSWER :(a)-(iii); (B)-(vi); (c)-(II); (d)-(i); (e)-(IV); (F)-(v)

41.	Match the terms given in Column-I with the compounds given in Column-II.
Answer» Solution :(A) Acid rain is due to oxides of carbon nitrogen and sulphur (unsaturated HYDROCARBON). (B) Photochemical smog is formed by unburnt fuel (unsaturated hydrocarbon) and `SO_2`. (C) CO with hemoglobin is poisonous. (D) CHLOROFLUOROCARBON `(CHCI_2 -CHF_2)` cause ozone depletion.

42.	Match the terms given in Column I with the compounds given in Column II.
Answer» ANSWER :`(i) rarr (C), (d) (II) rarr (E), (d) (iii) rarr (d) (iv) rarr (a)`

43.	Match the terms given in Column I with the compounds given in Column II.
Answer» Solution :(i) - (c,d), (II)-(E, d), (III) - (B), (iv) - (a)

44.	Match the term (in Column-I) with its expression (in Column-II) : {:("Column-I ","Column-II "),("A) RMS velocity ","P) "sqrt(8RT//piM) ),("B) Average velocity ","Q) "1/3 (mN u^2)/(V) ),("C) Most probable velocity ","R) "sqrt(3RT//M) ),("D) Pressure by N molecules of gases ","S) "sqrt(2RT//M) ):}
Answer» SOLUTION :FOMULAE for MOLECULAR SPEEDS.

45.	Match the structure in column-I with their IUPAC names in column-II. Which of the following pair is correct matching?
Answer» <P>`P RARR Z, Q rarr Y, R rarr W, S rarr X` `P rarr X, Q rarr Z, R rarr Y, S rarr W` `P rarr W, Q rarr X, R rarr Z, S rarr Y` `P rarr Y, Q rarr W, R rarr X, S rarr Z` Answer :B

46.	Match the statements (a, b, c, d) in column I with the statements (I, ii, iii, iv) in column II.
Answer» Answer :a. to I B to II, III c to ii I, iv

47.	Match the statements (a, b, c, d) in column I with the statements (I, ii, iii, iv) in column II.
Answer» ANSWER :a. to III B to I C to I d to II

48.	match the staements (a,b,c,d) in column I with the statements(I,ii,iii,iv) in column II
Answer» ANSWER :a. IV b. III c. ii d. i

49.	match the staements (a,b,c,d) in column I with the statements(I,ii,iii,iv) in column II
Answer» ANSWER :a. iiii B. IV C. i d. ii

50.	Match the species of Column - X with the electron configuration of the elements in the Column - Y and select correct answer
Answer» `(i) rarrM,(II) rarrN,(III) rarrP,(IV)rarrQ` `(i) rarrR,(ii) rarrN,(iii) rarrP,(iv)RARRS` `(i) rarrM,(ii) rarrQ,(iii) rarrS,(iv)rarrR` `(i) rarrR,(ii) rarrN,(iii) rarrS,(iv)rarrQ` Solution :