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.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
2.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
3.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
4.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
5.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
6.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
7.

Strutures of products , Starting materials or reagents

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SOLUTION :`UNDERSET("ADIPIC ACID")("HEXANE 1,6-dioic acid")`
Discussion
8.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
9.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
10.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
11.

Structures of some common polymers are given. Which one is not correctly represented ?

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Solution :The repeating structural UNIT of NEOPRENE has FOUR carbon atoms.
i.e., `-CH_(2)-C(Cl) = CH - CH_(2)-` and not five, i.e., `-CH_(2)-C(Cl) = CH - CH_(2)-CH_(2)-`.
Discussion
12.

Structures of some common polymers are given. Which one is not correctly presented ?

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NYLON`-6,6-{NH(CH_(2))_(6)NHCO(CH_(2))_(4)-CO-}_(n)`
Teflon`(-CF_(2)-CF_(2)-)_(n)`
NEOPRENE

SOLUTION :Neoprene is incorrect
But neoprene is CORRECT.
Discussion
13.

Strutures of products , Starting materials or reagents

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SOLUTION :
Discussion
14.

Structures of glycineandalanineare givenbelow. Show the peptidelinkagein glycylalanine . H_(2)N - underset("Glycine")(CH_(2))-COOH"" H_(2)N - underset("Alanine")underset(CH_(3))underset(|)(CH_(2)) - COOH

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SOLUTION :In glycylalanine , CARBOXYL group COMBINES with theamino group of ALANINE.
Discussion
15.

Struchures of some common polymers are given. Which one is not correctly represented?

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Teflon `(--CF_(2)-CF_(2)--)_(n)`
Neoprene
`[--CH_(2)-UNDERSET(CL)underset(|)C=CH-CH_(2)-CH_(2)--]_(n)`

Nylon-6,6
`[--NH(CH_(2))_(6)NHCO(CH_(2))_(4)CO--]_(n)`

ANSWER :B
Discussion
16.

Structures of glycine and alanine are give below , Show the peptide linkage in glycylalanine. H_(2)-underset("Glycine")(CH_(2))-COOH, H_(2)N-underset("Alnanie")underset(CH_3)underset(|)(CH)-COOH

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Solution :In glycylalanine , the carbonyl group of glycine COMBINES with the AMINO group of ALANINE to form a peptide BOND `(-CO-NH-)` between them as shown below :
Discussion
17.

Structures of glycine and alanine are given below. Show the peptide linkage in glycylalanine.

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Solution :`underset("(Glycine)")(H_(2)N-CH_(2)-COOH):underset("(Alanine)")(H_(2)N-underset(CH_(3))underset("|")"CH"-COOH)`
In glycylalanine, the carboxyl GROUP of glycine combines with the amino group of alanine.
Discussion
18.

Structure that gives the sequence of amino acids of a protein

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Primary
Secondary
Tertiary
Quaternary

Answer :A
Discussion
19.

Structure of Xenon fluoride cannot be explained by valence bond approach. Why ?

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Solution :DUE to FULLY filled OCTET of Xe.
Discussion
20.

Structure of the compound whose IUPAC name is 3-ethyl-2-hydroxy-4-methyhex-3-en5-ynoic acid is

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ANSWER :B
Discussion
21.

Structure of the compound whose IUPAC name is 3-ethyl. 2-hydroxy-4-methyl hex-3-en-5-ynoic acid is:

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ANSWER :B
Discussion
22.

Structure of the complex with sp^3 hybridisation

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PLANAR triangular
square planar
tetrahedral
octahedral

Answer :C
Discussion
23.

Structure of styrene butadine rubber is

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`(-CH_2-CH=CH-CH_2-CH_2-underset(|) CH-underset(C_(6)H_(5))(" ") )_n`
`(-CH_2-CH=CH-CH_2-CH_2-underset(|) CH-CH_2-underset(C_(6)H_(5))(" ") )_n`
`(-CH_2-CH=CH-CH=CH-underset(|) CH-underset(C_(6)H_(5))(" ") )_n`
`(-CH=CH-CH=CH-CH-underset(|) CH_2-underset(C_(6)H_(5))(" ") )_n`

ANSWER :A
Discussion
24.

Structure of product formod in the reaction is (AAK_MCP_37_NEET_CHE_E37_034_Q01)

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`(AAK_MCP_37_NEET_CHE_E37_034_A01)`

ANSWER :B
Discussion
25.

Structure of Silicone polymer is

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`(-O-overset(|)overset(O)overset(|)underset(|)underset(O)underset(|)Si-O)_(N)`
`(-O-overset(Si)overset(|)underset(R)underset(|)Si-O-)_(n)`
`(-O-overset(R)overset(|)underset(R)underset(|)Si-)_(n)`
`(-overset(|)underset(|)Si-)_(n)`

ANSWER :C
Discussion
26.

Structure of NaCl crystal is.

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Face CENTRED cubic
Monoclinic
ORTHORHOMBIC
Tetragonal

SOLUTION :The STRUCTURE of sodium chloride is face centred cubic.
Discussion
27.

Structure of Na_(2)B_(4)O_(7).10H_(2)O contains ---

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Two TRIANGULAR and two tetrahedral UNITS
THREE triangular and one tetrahedral units
 All tetrahedral units
All triangular units.

Answer :A
Discussion
28.

Structure of ionic compounds The bigger atom or ion will form the lattice and smaller atom/ion will occupy the voids generally the bigger ion is anion and smaller ion is cation in ionic compounds.The type of void occupied by the cation is decided by radius ratio. Find the correct set of combination for the compound whose cation has its nearest cationic neighbour at a distance of (asqrt2) where 'a' is the length of unit cell.

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<P>(II)(i)(R)
(IV)(ii)(S)
(I)(iii)(P)
NONE of these

Solution :In NACL `NA^+` has nearest `Na^+` at a distance of a/2
`r_(Na^+)/r^(Cl^(-))=0.51`
Discussion
29.

Structure of Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O contains

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TWO triangular and two tetrahedral UNITS of boron
three triangular and one tetrahedral units of boron
Five B-O-B linkages
one peroxy LINKAGE

ANSWER :A
Discussion
30.

Structure of ionic compounds The bigger atom or ion will form the lattice and smaller atom/ion will occupy the voids generally the bigger ion is anion and smaller ion is cation in ionic compounds.The type of void occupied by the cation is decided by radius ratio. Identify the correct set of combination for the compound that involves 4:4 coordination number compound

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(I)(ii)(Q)
(II)(iii)(R)
(II)(iii)(Q)
(IV)(i)(Q)

Solution :ZnS is 4:4 CN compound
`ZN^(+2)`:occupy alternate T.V.
`S^2`:TERM FCC
Discussion
31.

Structure of ionic compounds The bigger atom or ion will form the lattice and smaller atom/ion will occupy the voids generally the bigger ion is anion and smaller ion is cation in ionic compounds.The type of void occupied by the cation is decided by radius ratio. Identify the correct combination amongst the following -

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(I)(i)(P)
(II)(ii)(Q)
(III)(iii)(S)
(II)(iii)(S)

Solution :Theory based
NACL:-`Cl^(-)` froms FCC
`Na^(+)` occupy octahedral VOIDS
Effective number of `Cl^(-)` in v.c.=4
Effective number of `Na^(+)` in v.c.=4
Discussion
32.

structure of E is

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SOLUTION :
Discussion
33.

Structure of ethyl ethanoate is

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`CH_(3)COOC_(2)H_(5)`
`C_(2)H_(5)COOCH_(3)`
`H - COOC_(2)H_(5)`
`H - COOCH_(3)`

Answer :A
Discussion
34.

Structure of diethyl ether is confirmed by

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KOLBE synthesis
Frankland synthesis
Wurtz synthesis
Williamson synthesis

Answer :D
Discussion
35.

Structure of ICl_2^-is :

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TRIGONAL
Octahedral
Square planar
Distorted trigonal pyramidal

Answer :D
Discussion
36.

Structure of diethyl ether can be confirmed by:

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Kolbe.s synthesis
Frankland.s synthesis
Wurtz.s synthesis
Williamson.s synthesis

Answer :D
Discussion
37.

Structure of diethyl ehter is confirmed by :

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KOLBE's SYNTHESIS
Franklend's synthesis
Willamson's synthesis
WURTZ synthesis

Solution :WILLIAMSON's synthesis.
Discussion
38.

Structure of D-fructose is

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ANSWER :B
Discussion
39.

Structure of Cr_(2)O_(7)^(2-) has

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TWO TETRAHEDRA SHARING one corner
Two tetrahedra sharing one EDGE
Two tetrahedra sharing one FACE
Irregular octahedral

Answer :A
Discussion
40.

structure of compound having IUPAC nomenclature, 2-chloro-4-methylaniline is

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ANSWER :C
Discussion
41.

Structure of Ascorbic acid as represented as follows. How many of the following reagents can give positive test with ascorbic acid. {:(Cu_(2)Cl_(2)+NH_(4)OH,2","4-DNP,"Na metal",HCl+ZnCl_(2),FeCl,),((I),(II),(III),(IV),(V),),(NaOH+"Phenopthalein","dil".KMnO_(4),Br_(2)//H_(2)O,AgNO_(3)+NH_(4)OH,I_(2)+NaOH,),((VI),(VII),(VIII),(XI),(X),):}

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SOLUTION :`Na` METAL, `HCl+ZnCl_(2), FeCl_(3), NaOH+"Phenolpthalein"`, dill. `KMnO_(4), Br_(2)//H_(2)O` gives POSITIVE test with ASCORBIC acid.
Discussion
42.

Structure of (B) and (C) differentiated by

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TOLLEN's REAGENT
Fehiling solution
2,4-DNP
`NaHSO_(3)`

ANSWER :B
Discussion
43.

Structure of AX_(7) type is ………………. .

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SOLUTION :PENTAGONAL bipyramidal
Discussion
44.

Structure of ammonia is:

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Trigonal
Tetrahedral
Pyramidal
Trigonal pyramidal

Answer :C
Discussion
45.

Structure of a mixed oxide is cubic close-packed (ccp). The unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is

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`ABO_(2)`
`A_(2)BO_(2)`
`A_(2)B_(3)O_(4)`
`AB_(2)O_(2)`

ANSWER :D
Discussion
46.

Structure C_(8)H_(8)Cl_(2) an alkaline hydrolysis gives a product which does not give iodoform test but give silver mirror test ,is

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ANSWER :D
Discussion
47.

Structure of A is

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`H_(2)C=CH-CHO`
`Ph-CH=CH-CH_(3)`
`Ph-underset(CH_(3))underset(|)(C)-CH`
`Ph-CH=underset(CH_(3))underset(|)(C)-CH_(3)`

Answer :B
Discussion
48.

Structure of a DNA molecule is :

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Linear
BRANCHED
SINGLE HELIX
DOUBLE helix .

ANSWER :D
Discussion
49.

Structure of 2-methyl 2-halo butane is

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`CH_(3)-CX(CH_(3))C_(2)H_(5)`
`CH_(3)-CH_(2)-CX(CH_(3))C_(2)H_(5)`
`CH_(3)CX(CH_(3))CH_(3)`
`CH_(3)-CHXC_(2)H_(5)`

Answer :A
Discussion
50.

Structure of (A) and (B) respectively are:

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SOLUTION :
Discussion