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.

C_3H_7I overset(KOH(alc.))rarroverset((Cl_2)(g))underset(773K)rarrX: X can be:

Answer»

VINYL CHLORIDE
ALLYL chloride
ETHYL chloride
Dichloroethane

Answer :A
Discussion
2.

C_2H_5I overset"[H]"to A. A is

Answer»

Ethane
Butane
Methane
Methyl iodide

Solution :`C_2H_5I+2[H]UNDERSET"HCL"OVERSET"Zn"to underset"ethane"(C_2H_6)+HI`
Discussion
3.

C_2H_5I+KOH(alc.) oversetDeltararr _____+______ +H_2O

Answer»

SOLUTION :`C_2H_4` , KI
Discussion
4.

C_2H_5I and C_3H_7I react with sodium metal to give :

Answer»

`C_4H_10+C_6H_14+C_5H_12`
`C_5H_12+C_6H_14`
`C_4H_10+C_6H_14`
`C_5H_12`

ANSWER :A
Discussion
5.

C_(2)H_(5)H_(2) Which product is a Schiff's base :-

Answer»

a
B
c
d

Answer :B
Discussion
6.

C_2H_5COOH overset(LiAlH_4)to A A underset"623 K"overset(Al_2O_3)to B + H_2O In above reaction A and B respectively

Answer»

`C_2H_5-OH` and `CH_2=CH_2`
`C_2H_5-CHO` and `C_2H_5OH`
`CH_3-CH_2-CH_2-OH` and `CH_3-CH=CH_2`
`CH_3-CH=CH_2` and `CH_3-CH_2-CH_2-OH`

ANSWER :C
Discussion
7.

C_2H_5CNoverset(HNO_(2))toAoverset(PCl_(5))toBoverset(NH_(3))toC end product in the given sequence is

Answer»

`C_2H_5CN`
`CH_3NH_2`
`C_2H_5NH_2`
`CH_3CONH_2`

ANSWER :3
Discussion
8.

C_(2)H_(5)CN on hydrolysis gives :

Answer»

ACETIC acid
Formic acid
Propionic acid
Carbon dioxide.

Answer :C
Discussion
9.

C_2H_5Cl underset(Ag_2O)overset(aq)(to) A underset(360^@C)overset(Al_2O_5)(to)B overset(S_2Cl_2)(to) . In the above sequence of reactions, identify 'C'

Answer»

CHLORETONE 
Chloropicrin 
Mustard gas 
Lewisite gas

Answer :C
Discussion
10.

C_2 H_5 Cloverset("alc .KOH") tox overset(Cl_2C Cl_4) toY Correct statement about compound 'y' is

Answer»

It is an EXAMPLE of gem DIHALIDE
It is an example of vic dihalide
Hybridisation of CARBON in 'y' is `sp^2`
It is an UNSATURATED compound

Answer :B
Discussion
11.

C_(2)H_(5)Cl+Naunderset(-NaCI)overset("dry ether")(rarr)A. How many isomers are formed by monohalogenation of A including stereo isomers

Answer»

`1`
`2`
`3`
`4`

Solution :`C_(2)H_(5)Cloverset(Na)(rarr)C_(2)H_(5)-C_(2)H_(5)underset("genation")overset("MONOHALO-")(rarr)`
`CH_(3)-underset(Cl)underset(|)(CH)-C_(2)H_(5)_Cl-CH_(2)-CH_(2)-C_(2)H_(5)`
Discussion
12.

C_2 _5Cl +Mgoverset("Dry ether ")to Xoverset(D_ 2 O)to Y Here the final product 'Y' is

Answer»

`C_2H_6`
`C_2H_4D_2`
`CH_3D`
`C_2H_5D`

ANSWER :D
Discussion
13.

C_(2)H_(5)Cl + AgOH to A + AgCI A+CH_(3)COCI to C + HCl. Here "C" is

Answer»

ETHYL acetate
Methyl acetate
Butanone
Propanone

Answer :A
Discussion
14.

C_2H_5CHO and CH_3COCH_3 can be distinguished by testing with :

Answer»

PHENYL HYDRAZINE
HYDROXYLAMINE
Fehling's solution
SODIUM bisulphite

Answer :C
Discussion
15.

C_2H_5CHOandCH_3COCH_3can be distinguished from one another by testing with

Answer»

PHENYL HYDRAZINE
2,4- Dinitrophenyl hydrazine
Fehling solutions
Sodium bisulphite

Answer :C
Discussion
16.

C_2H_5Broverset(AgCN)toAoverset(H_3overseto+O)toB+HCOOH Bunderset"KOH"overset(CHCl_3)to A overset"Reduction"toC A,B and C are respectively in this reaction :-

Answer»

Ethane AMINE, methanenitrile and DIETHYLAMINE
Carbylamino ethane, ethaneamine and sec. amine
Ethyl isocynids, ETHYLAMINE and METHYL ISOCYANATE
Carbylamino ethane, ethane amine and ethyl methyl amine

Answer :D
Discussion
17.

C_2H_5Brundersetrarr(KCN) (A) undersetrarrhydrolysis (B) The compound (B) in above reaction is:

Answer»

ETHYL CHLORIDE
ACETIC acid
Propionic acid
Ethyl cyanide

Answer :C
Discussion
18.

C_2H_5CHBrCH_3 underset("water")overset(KOH) rarr X underset(300^@C) overset(Cu) rarr Y. What are the compounds 'X' and 'Y' ?

Answer»

SOLUTION :COMPOUND X is 2 - butanol `(C_2H_5CHOHCH_3)` and Y is BUTANONE `(C_2H_5COCH_3)`
Discussion
19.

C2H5Br overset(AgCN)(to)overset(H_(3)overset(o+)(O))(to)B+HCOOHBunderset(KOH)overset(CHCl_(3))(to)Aoverset("Reduction")(to)C A,B, and C are respectively in this reaction:

Answer»

ETHANE AMINE, methanenitrile and diethylamine
Carbylamino ethane, ethaneamine and sec.amine
Ethyl isocynids, ETHYLAMINE and methyl isocyanate
Carbylamino ethane, ethane amine and ethyl methyl amine

Solution :NA
Discussion
20.

C_(2)H_(5)Br+ Mg overset("Dry ether")to A overset(H_(2)O)to B

Answer»

Solution :A is `C_(2)H_(5)Mg Br`, B is `C_(2)H_(6)`
Discussion
21.

C_(2)H_(5)Br can be obtained in a laboratory by the action of ethyl alcohol with ……

Answer»

KBr
KBr + CONC. `H_(2)SO_(4)`
`NH_(4)Br`
`Br_(2)`

Answer :B
Discussion
22.

C_2H_5Br can be obtained in the laboratory by the action of ethyl alcohol with :

Answer»

KBR
`NH_4Br`
`Br_2`
KBr and CONC. `H_2SO_4`

ANSWER :D
Discussion
23.

C_2H_5 - O - C_2H_5+ HI overset(Delta)(to)X+ Y . Here X and Y are (if axcess HI is used )

Answer»

`C_2H_5I` and `C_2H_5OH`
`C_2H_5I` and `H_2O`
`C_2H_5OH + H_2O`
`C_2H_4 + H_2O`

ANSWER :B
Discussion
24.

C_(2)H_(5)-O-C_(2)H_(5)+ 2HBr underset(-H_(2)O)overset(Delta)toX What is X?

Answer»

Bromo butane<BR>Bromo ethane
Bromo ethene
Ethanol

Solution :`C_(2)H_(5)-O-C_(2)H_(5)+ 2HBr UNDERSET(-H_(2)O)overset(Delta)to 2C_(2)H_(5)Br`
Discussion
25.

C_2H_5Cl + Mg rarr x overset(H_2O)(rarr) Y. C_2H_5Cl overset(LiAlH_4)(rarr) z, then y and z are

Answer»

same ALKENES
DIFFERENT alkanes
same alkanes
ALKYNES

ANSWER :C
Discussion
26.

C_2H_4 underset( AlCl_3) overset( HCl) to A overset( KOH (aq.) ) to B underset( 140^(@) C ) overset( Conc. H_2SO_4) to C What is the final product?

Answer»

`C_2H_4`
` C_2H_5-O-C_2H_5`
` C_2H_5OH`
` C_2H_5-O- SO_3H`

ANSWER :B
Discussion
27.

C_2H_3N underset(" Ether ")overset(LiAl"/"H_4)(to)B overset(HNO_2)(to) Identify A,B and C.

Answer»

SOLUTION :`{:(CH_3CequivNunderset(" Ether ")overset(LiA"/"H_4)(to)CH_3CH_2NH_2overset(HNO_2)(to)CH_3CH_2OH),(" MethylCyanide(A)ETHYLAMINE(B)ETHYLALCOHOL(C )"):}`.
Discussion
28.

C_(2)H_(2)underset(H_(2)SO_(4))overset(HgOH" "1%)toAoverset([A])toB, B is

Answer»

An acid
An aldehyde
A ketone
Ethanol

Solution :
Discussion
29.

C_(2)H_(2)underset(H_(2)SO_(4))overset(HgSO_(4))toAoverset(O)toB B is :

Answer»

an acid
an ALDEHYDE
ACETONE
ethanol.

Answer :A
Discussion
30.

C_(2)H_(2) underset(H_(2)SO_(4),H_(2)O)overset(Hg^(2+))rarr A overset([O])rarr B, The compound B is

Answer»

an acid
an aldehyde
ketone
ethanol

Solution :`HC -= CH underset(H^(+),H_(2)O)overset(HG^(2+))rarr CH_(3)CHO overset(O)rarr underset("Acid")(CH_(3)COOH)`
Discussion
31.

C_(2)H_(12)O is a monohydric alcohol . How many isomers of this alcohol are possible ? How many of these contain chiral centres as well as can exhibit enantiomerism ?

Answer»

8 and 3
6 and 2
4 and 2
12 and 4

SOLUTION :`C_5H_12O = C_5 H_11OH`
(i) `UNDERSET("Pentan - 1-ol ")(CH_3CH_2CH_2CH_2CH_2OH)`
(ii) `underset(Pentan-2-ol(Chiral))(CH_3overset(CH_3)overset(|)CHCH_2CH_2CH_3)`
(iii)`CH_3CH_2overset(OH)overset(|)CHCH_2CH_3`
`underset("3-Methybutan-2-ol")(CH_3-overset(CH_3)overset(|)CHCH_2CH_2CH_3)`

(V) `underset("2,2-Dimethylpropan-1-ol")(CH_3-underset(CH_3)underset(|)overset(CH_3)overset(|)C-CH_3OH` (vi) `underset("2-Methylbuatan-2-ol")(CH_3-overset(CH_3)overset(|)underset(OH)underset(|)C-CH_2CH_3)`
(Vii) `underset("3-Methylbutan-2-ol(Chrial)")(CH_3-overset(CH_3)overset(|)CH-overset(OH)overset(|)CH-CH_3)`
(VIII) `underset("2-Methylbutan")(CH_3CH_2overset(CH_3)overset(|)"CH"CH_2OH)`
Discussion
32.

C_(2) H_(5)CHO and (CH_(3))_(2) can be distinguished by testing with

Answer»

Phenyl hdrazine
Hydrozylamine
Fehling SOLUTION
Sodium BICARBONATE

Solution :Fehling.s test is shown only by ALDEHYDES and not KETONES.
Discussion
33.

C_2 H_5 OH overset(K_2 Cr_2 O_7//H^+)to (X) overset(O)to (Y) , What is 'Y' ?

Answer»

`CH_(3) CHO`
`CH_(3) COOH`
`CH_(3) COOC_(2) H_(5)`
`CH_(3) COCH_(3)`

ANSWER :B
Discussion
34.

C_2H_5OH + SOCl_2 overset("Pyridine")(rarr)X + Y + Z. In this reaction X, Y & Z are

Answer»

`C_2 H_4 Cl_2 ,SO HCI`
`C_2 H_5 CL, SO_2,HCI`
`C_2H_5CL,SOCL,HCI`
`C_2 H_4 ,cO_2 ,Cl_2`

ANSWER :B
Discussion
35.

C_(2) H_(5) OH + CH_(3) COOH overset(H_(2) SO_(4)) (hArr) CH_(3) COO C_(2) H_(5) + H_(2) O . Here H_(2) SO_(4) acts as

Answer»

OXIDISING agent
REDUCING agent
DEHYDRATING agent
NEGATIVE CATALYST

Answer :C
Discussion
36.

C_(2) H_(5) NH_(2) overset( HNO_(2))(to)A overset(PCI_(5))(to) Boverset( NH_(3))(to) C is

Answer»

`C_(2) H_(5) OH`
`C_(2)H_(5) CONH_(2)`
`C_(2)H_(5)NH_(2)`
`CH_(3) NH_(2)`

SOLUTION :`C_(2) H_(5) NH_(2) overset( HNO_(2)) (to)C_(2) H_(5) OHoverset( PCI_(2)) (to)`
`underset((B)) (C_(2) H_(5) CI)overset NH_(3)(to)C_(2) underset( (C )) (H_(5))NH_(2)`
Discussion
37.

C_2H_5Cl_("excess") overset(NH_3 alc)(rarr)A_("final")Covalence of 'N' in 'A' is

Answer»

4
3
2
1

Answer :A
Discussion
38.

C_2 H_5 - NH_2 + HNO_2 to A, A is :

Answer»

`C_2 H_5 OH`
`C_2 H_5 NHOH`
`C_2 H_6`
`C_2 H_5 NH_2`

ANSWER :A
Discussion
39.

C_2H_5Cl Na underset(NaCl)overset("dry ether")(rarr)A. A on monochlorination gives how many isomers ?

Answer»

1
2
3
4

Answer :C
Discussion
40.

C_(2) H_(5) - N^(+)(CH_(3))_(3) OH^(-) overset(to)(Delta) CH_(2)= CH_(2) + (CH_(3))_(3) N+ H_(2)O Abovereactionis knowas

Answer»

Hoffmann'sdegradationreaction
Hoffimann's carbylaminetest
Hoffimann'seliminationreaction
Hinsberg'stest

Solution :N/Amereaction
Discussion
41.

C_2H_5Cl +KNO_2 overset(C_2H_5OH)(rarr)X + KCl Substance X' in the reaction is

Answer»

C-N
C-O
`C-H`
`C-C`

ANSWER :B
Discussion
42.

C_2-C_3bond length in buta-1,3-diene is:

Answer»

1.46`OVERSET@A`
1.20`overset@A`
1.39`overset@A`
1.34`overset@A`

ANSWER :B
Discussion
43.

C^(14)H^(18)N^(2)O^(5) is

Answer»

ASPARTAME
Alitame
Sucrulose
Saccharin

Answer :A
Discussion
44.

C^(14) is radioactive. The activity and the disintegration product are

Answer»

`BETA-`active, `._(7)N^(14)`
`alpha - " active, " ._(7)Be^(10)`
Positron active, `._(5)B^(14)`
`gamma-"active ", C^(14)`

Solution :`._(6)C^(14) RARR ._(7)N^(14) + ._(-1)e^(0), beta`-active
Discussion
45.

C^(14)is a beta activenucleus. A sample of C^(14)H_(4) gas kept in a closed vessel shows increase in pressure with time . This is due to:

Answer»

the formation of `N^(14)H_(3) "and" H_(2)`
the formation of `B^(11)H_(3) "and" H_(2)`
the formation of `C_(2)^(14)H_(4) "and"H_(2)`
the formation of `C^(12)H_(3), N^(14)H_(2) "and"H_(2)`

Answer :a
Discussion
46.

C_(12) H _(12) O _(11) overset(H_(2) SO _(4)) to H _(2) O + A overset( H _(2) SO _(4))to B + C + H _(2)O If the compound C is an oxide of group VIA elemet then the compound B is

Answer»

`SO_2`
CO
`CO_2`
`C_3O_2`

ANSWER :C
Discussion
47.

C_(12)H_(22)O_(11) overset(H_(2)SO_(4)to product, products of the reactionis /are

Answer»

`12C+11H_(2)O`
`11C+12H_(2)O`
`5CO+7CO_(2)+H_(2)O`
`CO_(2)+H_(2)O`

SOLUTION :`C_(12)H_(22)O_(11)overset("Con. "H_(2)SO_(4))to 12C+11H_(2)O`
Discussion
48.

C_12H_22O_11+H_2O to^(dil.H_2SO_4) C_6H_12O_6(aq)+C_6H_12O_6(aq) Sucrose Fructose Glucose In this reaction dilute H_2SO_4 is called

Answer»

HOMOGENEOUS CATALYSIS
Homogeneous CATALYST
HETEROGENEOUS catalysis
Heterogeneous catalyst

Answer :B
Discussion
49.

C_12H_10 is an aromatic compound which on ozonolysis gives mixture of Glyoxal and 2-Oxopropanedial in ratio 3:2 it structure can be :

Answer»




SOLUTION :
Discussion
50.

C_(10)H_(16)+8Cl_(2)overset(Delta)rarr A. Identify A?

Answer»

METHANE
Ethane
CARBON
Propane

Solution :Carbon
Discussion