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.

The IUPAC name of the compound having the formula CH -= C - CH = CH_(2) is

Answer»

1-butyne-3-ene
but-1-yne-3-ene
1-butene-3-yne
3-butene-1-yne

Solution :`Hoverset(4)(C) -= OVERSET(3)(C)-overset(2)(C)H=overset(1)(C)H_(2)`1-Butene-3-yne(`because` DOUBLE bond is GIVEN PREFERENCE)
Discussion
2.

The IUPAC name of the compound having formula H_(3)C-underset(CH_(3))underset(|)overset(CH_(2)CH_(3))overset(|)(C)-CH=CH_(2) is

Answer»

3,3,3-trimethylprop-1-ene
1,1,1-trimethylprop-2-ene
3,3-dimethylpent-1-ene
2,2-dimethylbut-3-ene.

Solution :`underset("3,3-Dimethylpent-1-ene")(H_(3)OVERSET(5)(C)-overset(4)(C)H_(2)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)( .^(3)C)-overset(2)(C)H=overset(1)(C)H_(2))`
Discussion
3.

The IUPAC name of the compound CH_(3)-underset(CH_(3))underset(|)CH-underset(CH_(2))underset(||)C-CH_(2)CH_(3) is

Answer»

3-Methyl-2-ETHYL but-1-ene
2-Ethyl-3-methyl but-1-ene
3-Ethyl-3-methyl but-1-ene
Ethyl ISOPROPYL ethene

Solution :IUPAC NOMENCLATURE of RULES
Discussion
4.

The IUPAC name of the compound CH_(3)COCH (CH_(3))_(2) is :

Answer»

ISOPROPYL METHYL ketone
2-Methylbutane-3-one
4-Methylisopropyl ketone
3-Methylbutane-2-one.

Solution :3- Methylbutanone is the CORRECT ANSWER.
Discussion
5.

The IUPAC name of the compound CH_(3)CH=CH-=CH is

Answer»

Pent-1-yn-3-ene
Pent-4-yn-2-ene
Pent-3-en-1-yne
Pent-2-en-4-yne

Solution :When both double and triple BONDS are PRESENT, then triple BOND is CONSIDERED as the principal GROUP.
Discussion
6.

The IUPAC name of the compound, CH_(3)CH = CHC -= CH is

Answer»

pent-4-yn-2-ene
pent-3-en-1-yne
pent-2-en-4-yne
pent-1-yn-3-ene

Solution :`CH_(3)overset(4)(C)H=overset(3)(C)Hoverset(2)(C)-=overset(1)(C)H` Pent-3-en-1-yne.
Discussion
7.

The IUPAC name of the compound: CH_3 - underset(underset(O)||)C - CH_2 - CH_2 OH is

Answer»

3-oxobutan-1-ol
1-Hydroxybutan-3-one
4-Hydroxybutan-2-one
2-oxobutan-4-ol

Answer :C
Discussion
8.

The IUPAC name of the compound CH_(3)-underset(OH)underset(|)(CH)-COOH is ............ .

Answer»

2 - Hydroxypropionic acid
2-Hydroxy PROPANOIC acid
Propan-2-o1-1-oic acid
1 - Carboxyethanol

Answer :B
Discussion
9.

The IUPAC name of the compound CH_(3) - oversetoverset(OH)(|)CH -CH_(2) - oversetoverset(CH_(3))(|)CH -CHO is

Answer»

4-Hdroxy-1-methylpentanal
4-Hydroxy-2-methylpentanal
2-Hydroxy-4-methylpentanal
2-Hydroxy-2-methylpentanal

ANSWER :B
Discussion
10.

The IUPAC name of the compound CH_(3)-CH=underset(CH_(2)-CH_(2)-CH_(3))(underset(|)(C)-CH_(2)-CH_(3) is ............ .

Answer»

1 ) 3 - Ethyl-2-hexene
2) 3 - PROPYL -3-hexene
3) 4-Ethyl - 4 -hexene
4) 3 - Propyl-2-hexene

Answer :A
Discussion
11.

The common name of CH_(3)-CH=CH-CHO

Answer»

PENT - 4-yn-2-ene
Pent-3-en-l-yne
pent-2-en-4-yne
Pent-1-yn-3-ene

Answer :B
Discussion
12.

The IUPAC name of the compound CH_2(OH)CH(NH_2)COOH is

Answer»

2-Amino-1-hydroxy PROPANOIC ACID
1-Hydroxy-2-amino propan-3-oic acid
2-Amino-3-hydroxy propanoic acid
1-Amino-2-hydroxy propanoic acid

ANSWER :C
Discussion
13.

The IUPAC name of the compound CH_(2)(OH)CH(NH_(2))COOH is

Answer»

2-Amino-1-hydroxy propanoic ACID
1-Hydroxy-2-amino propan-3-oic acid
2-Amino3-hydroxy propanoic acid
1-Amino-2-hydroxy propanoic acid

Solution :Numbering MUST be STARTED from right to left because COOH is principal FUNCTIONAL group.
Discussion
14.

The IUPAC name of the compound CH_(2) (OH) CH(NH_2)COOH is

Answer»

3-Amine-2-hydroxy PROPANOIC ACID
1-Hydroxy-2-amino propan-3-oic acid
3-Amino-2-hydroxy propanoic acid
1-Amino-2-hydroxy propanoic acid

Answer :C
Discussion
15.

The IUPAC name of the compound C_(2)H_(5) - underset(underset(CH_(2))(||))(C )-CH_(2)OH is

Answer»

2- Ethylprop -2-en-1 -ol
2-Hydroxymethyl butan-1-ol
2-Methylenebutan-1-ol
2-Ethyl-3-hydroxy PROP -1-ene

Answer :A
Discussion
16.

The IUPAC name of the above acid is

Answer»

1, 2, 3-Propanetricarboxylic ACID
3-Hydroxy-1, 5-pentanedioic acid
3-Hydroxy-3-keto-1, 5-pentanedioic acid
1, 3, 5-Trihydroxpental-1, 5-dione

Solution :`{:("321"),(HOOC - CH_(2)- CH - CH_(2) - COOH),("|"),(""COOH),("1, 2, 3-Propanetricarboxylic acid"):}`
Discussion
17.

The IUPAC name of - OHC CH=CH-underset(CH_(2)CH_(2)CH_(2)CH_(3))underset(|)(CH)-CH=CH_(2) is-

Answer»

5-Vinyloct-3-en-1-al
2-Methylbutanal
3-Methyl ISO BUTYRALDEHYDE
2-Ethylpropanal

Answer :B
Discussion
18.

The IUPAC name of overset(3)CH_(3)-underset(CH_(2)CH_(3))underset(|)(overset(2)CH)-overset(1)CHO

Answer»

a)2-methyl butanal
b)butan-2-aldehyde
C)2-ethylpropanal
d)3-methyl isobutraldehyde

Answer :C
Discussion
19.

The IUPAC name ofPh -overset(O)overset(||)C-CH_2-CH_(2)-CH_(3) is

Answer»

Phenyl propyl ketone
4 - Phenyl - 4 - BUTANONE
1 - Phenyl - 1 - butanone
1 - Oxo - 1- butyl benzene

ANSWER :C
Discussion
20.

The IUPAC name of neopentane is…….

Answer»

2-methylbutane
2, 2-dimethylpropane
2-methylpropane
2, 2-dimethylbutane

Solution :`UNDERSET("2, 2-dimethylpropane (NEOPENTANE)")(H_(3)C^(1) -underset(underset(CH_(3))(|))overset(overset(CH_(3))(2|))(C )-overset(3)(C )H_(3))`
Discussion
21.

The IUPAC name of is

Answer»

(Z)-pent-2-en-2,3-diol
4-penten-2-yn-1-ol
1-pentene 3-yn-5-ol
5 Hydroxy-1-pentene 3-yne

Answer :B
Discussion
22.

The IUPAC name of is……

Answer»

1, 1-diethyl-2, 2-dimethyl pentane
4, 4-diethyl-5, 5-diethylpentane
5, 5-diethyl-4, 4-dimethypentane
3- ethyl-4, 4-dimethylheptane

Solution :
Discussion
23.

The IUPAC name of is……

Answer»

4-bromo-5-methyl-1-amino hox-2 one
3-bromo-4-methylpantamide
3-bromo, 2-methyl, 5-ketohexenamide
4-bromo, 5-methyl, 5-hexenamide

Answer :B
Discussion
24.

The IUPAC name of is

Answer»

3-Ethyl-4, 4-dimethylheptane
1, 1-Diethyl-2, 2-dimethylpentane
4, 4-Dimethy-5, 5-dimethylpentane
5, 5-Diethyl-4, 4-Dimethylpentane

Solution :`{:(""CH_(3)),("|"),(overset(7)(C)H_(3)-overset(6)(C)H_(2)-overset(5)(C)H_(2)overset(4)(-C)-overset(3)(C)H-overset(2)(C)H_(2)-overset(1)(C)H_(3)),("|""|"),(""CH_(3)""CH_(2)-CH_(3)):}`
Discussion
25.

The IUPAC name of is

Answer»

3, 3-Dimethyl-1-hydroxycyclohexane
1, 1-Dimethyl-3-hydroxycyclohexane
3, 3-Dimethyl-1-cyclohexanol
1, 1-Dimethyl-3-cyclohexanol

Solution :
3, 3-Dimethyl-1-cyclohexanol
Discussion
26.

The IUPAC name of is …….

Answer»

2-ethyl, hexa-1-ene
2-ethyl-4-methyl, pent-1-4dine
2-methyl, -hex-1-ene
2-methyl-4-ethyl, asoct-1-ene

Answer :B
Discussion
27.

The IUPAC name of is :

Answer»

3-Methylcyclohexene
1-Methylcyclohex-2-ene
6-Methylcyclohexene
1-Methylcyclohex-5-ene

Solution :
3-Methylcyclohexene
Discussion
28.

The IUPAC name of is :

Answer»

2, 3-Dimethylbutanoyl CHLORIDE
3, 4-Dimethylpentanoyl chloride
1-Chloro-1-oxo-2, 3-dimethylpentane
2-Ethyl-3-methylbutanoyl chloride.

Solution :2, 3-Dimethylbutanonyl chloride is the CORRECT ANSWER.
Discussion
29.

The IUPAC name of compound Y is :

Answer»

2-Cyclohexybutane
1-Methylpropylcyclohexane
Butylcyclohexane
1-Cyclohexylbutane

Answer :B
Discussion
30.

The IUPAC name of compound NH_(2)CO-CH_(2)-CH_(2)-overset(CONH_2)overset(|)(CH)-CH_(2)-CH_(2)-CH_(2)-CH_3

Answer»

1,3-Dicarbamoylheptane
4-Carbamoyloctane
2-n-Butylpentanediamide
2-n-Butylpentanediaminoketone 30.

ANSWER :C
Discussion
31.

The IUPAC name of {:(CH=CH),(|""|),(CHO" "NH_2):} is

Answer»

1-amino-2-propenol
1-amino-2-formylethene
3-aminopropenal
1-oxo-3-propenamine

ANSWER :C
Discussion
32.

The IUPAC name of CH_(3)COOCH_(3) and CH_(3)CH_(2)COOCH_(3) is…… and …..respectively

Answer»

SOLUTION :METHYL ethanoate and methylpropanoate
Discussion
33.

The IUPAC name of CH_(3)COCH(CH_(3))_(2) is…….

Answer»

isopropylmethyl ketone
2-methyl-3-butanone
4-methyl-isopropyl ketone
3-methyl-2-butanone

Solution :`underset("3-methyl-2-butanone")(OVERSET(1)(C)H_(3)-overset(overset(overset(O)(||))(2))(C )- underset(underset(CH_(3))(|))overset(3)(CH)- overset(4)(C )H_(3))`
Discussion
34.

The IUPAC name of CH_(3)COCH (CH_(3))_(2) is :

Answer»

4-Methyl ISOPROPYL ketone
3-Methylbutan-2-one
Isopropylmethyl ketone
2-Methylbutan-3-one

Solution :`{:(""O),("||"),(OVERSET(1)(C)H_(3)overset(2)(-C)-overset(3)(C)H-overset(4)(C)H_(3)),("|"),(""CH_(3)):}`
3-Methylbutan-3-one
Discussion
35.

The IUPAC name ofCH_(3)CH_(2)OCH_2overset(O)overset(||)C-H is

Answer»

FORMYL METHYL ethyl ETHER
Ethyl aldo methyl ether
2-Ethoxyformate
2- Ethoxyethanal

ANSWER :D
Discussion
36.

The IUPAC name of CH_3CH_2OCH_2oversetunderset(||)(O)(C ) - H is

Answer»

FORMYL methyl ethyl ETHER
Ethyl ALDO methyl ether
2-Ethoxy formate
2-Ethoxy ETHANAL

Answer :D
Discussion
37.

The IUPAC name of CH_3CH_2 -CH_2 - oversetunderset(|)(CH = CH_2)(C )H - CH_2CH_2CH_3 is

Answer»

3-propyl-1-hexene
3, 3-dirpropyl-1-propene
4-ethenyl-heptane
NONE of these

ANSWER :A
Discussion
38.

The IUPAC name of CH_(3)CH_(2)OCH_(2)overset(O)overset("||")("C")-H is

Answer»

FORMYL methyl ethyl ether
Ethyl ALDO methyl ether
2-Ethoxy FORMATE
2-Ethoxy ETHANAL

Solution :Always Ethers should be taken as substitutent but not principal functional group.
Discussion
39.

The IUPAC name of CH_(3)CH_(2)-CH_(2)-overset(CH=CH_(2)"")overset("|")("CH-CH_(2)CH_(2)CH_(3))is

Answer»

3-propyl-1-hexene
3,3-diropropyl-1-propene
4-ethenyl-heptane
NONE of these

Solution :MUST be selected LONG chain including with DOUBLE bond.
Discussion
40.

The IUPAC name of (CH_(3))_(3)C Cl is

Answer»

1-chloro-1, 1, 1-trichloromethane
2-chloro-2-methylpropane
2-chlorobutane
Trimethylchloromethane

Answer :B
Discussion
41.

The IUPAC name of (CH_3)_3 C - C -= CHis

Answer»

2,2-dimethylbut -3-yne
2,2-dimethylpent -4-yne
3,3-dimethylbut -1-yne
3,3-dimethylpent-1-yne

ANSWER :C
Discussion
42.

The IUPAC name of (CH_(3))_(3)C-C-=CH is

Answer»

2,2-dimethylbut-3-yne
2,2-dimethylpent-4-yne
3,3-dimethylbut-1-yne
3,3-dimethylpent-1-yne

Solution :3,3-dimethylbut-1-yne.
Discussion
43.

The IUPAC name of (CH_(3))_(2)CH-CH_(2)-CH(CH_(3))-CH(CH_(3))_(2) is ............. .

Answer»

SOLUTION :2, 3, 5-trimethyl HEXANE
Discussion
44.

The IUPAC name of (CH_(3))_(2) CHCH_(3) is

Answer»

Dimethylethane
Trimethylmethane
Isopropylmethane
2-Methylpropane

Solution :`{:(overset(1)(C)H_(3)-overset(2)(C)H-overset(3)(C)H_(3)),("|"),(""CH_(3)):}`
2-Methylpropane
Discussion
45.

The IUPAC name of (CH_(3))_(2) CH- CH= CH-CH=CH- underset(underset(C_(2)H_(5))(|))(CH) - CH_(3)

Answer»

2, 7-dimethyl-3, 5-nonadiene
2, 7-dimethyl-2-ethylheptadiene
2-methyl-7-ehtyl-3, 5-octadiene
1, 1-dimethyl-6-ethyl 1-2, 4-heptadiene

Answer :A
Discussion
46.

The IUPAC name of CH_(3) - underset(underset(O)(||))(C )-CH_(2)-underset(underset(CH_(3))(|))overset(overset(CN)(|))(C )-CH_(3) is……..

Answer»

2-cyno-2-methyl-4-oxopentane
4-cyno-4-methyl-2-pentanone
2, 2-dimethyl-4-one-butanenitrile
2, 2-dimethyl-4-one-pentanitrile

Answer :D
Discussion
47.

The IUPAC name of CH_(3) - underset(underset(CH_(2)CH_(3))(|))overset(overset(OH)(|))(C )- CH_(2) - overset(overset(OH)(|))(CH) - CH_(3)

Answer»

1, 1-dimethyl-1, 3-butandiol
2-ethyl -2,4 -pentandiol
4-methyl-2,4-hexanediol
1, 2, 3-trimethyl -1, 3-propanediol

Answer :C
Discussion
48.

The IUPAC name of CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(2)-CH_(2)-underset(underset(CH_(3))underset(|)(CH_(2)))underset(|)(CH)-CH_(3) is ............. .

Answer»

SOLUTION :2,2,5-trimethyl HEPTANE
Discussion
49.

The IUPAC name of CH_3-underset(C)underset(|)(C)=underset(CH_3)underset(|)Cl-underset(C_2H_5)underset(|)C-CH_2-C-=CH is:

Answer»

6-Chloro-4-ethyl-5-methyl-5-hepten-1-yne
5-Methyl-4-ethyl-6-chloro-5-hepten-1-yne
6-Chloro-4-ethyl-5-methyl-1-hepten-5-yne
2-Chloro-4-ethyl-3-methyl-hept-2-ene-6-yne

Answer :D
Discussion
50.

The IUPAC name of CH_3 - underset(CH_3)underset(|)overset(Br)overset(|)C-undeset(Cl)underset(|)(CH) - underset(CH_3)underset(|)CH-CH_3 is …………………. .

Answer»

SOLUTION :2-Bromo-3-chloro-2, 4-dimethylpentane.
Discussion