Nomenclature of Organic Compounds:

The compound having only primary hydrogen atoms is
(a) Isobutene
(b) 2,3-Dimethylbutene
(c) Cyclohexane
(d) Propyne

Ans. (d)

IUPAC name of CH₃ – O – C₂H₅ is
(a) Ethoxymethane
(b) Methoxyethane
(c) Methylethyl ether
(d) Ethylmethyl ether

Ans. (b)

The IUPAC name of succinic acid is
(a) 1, 4-butanedioic acid
(b) Dimethyl-2-acid
(c) 1, 2-dimethyldioic acid
(d) None of these

Ans. (a)

The IUPAC name of Gamaxene is
(a) Benzene hexachloride
(b) Hexachlorobenzene
(c) 1, 2, 3, 4, 5, 6, hexachlorobenzene
(d) 1, 2, 3, 4, 5, 6, hexachlorocyclohexane

Ans. (c)

The IUPAC name of CH₃ CH₂ COCH₂CH₃ is
(a) 3-pentanone
(b) 2-pentanone
(c) Diethyl ketone
(d) All the above

Ans. (a)

Which of the following compounds is not chiral
(a) 1-chloro-2-methyl pentane
(b) 2-chloropentane
(c) 1-chloropentane
(d) 3-chloro-2-methyl pentane

Ans. (a)

Cl – C – Cl angle in 1, 1, 2, 2 – tetrachloroethene and tetrachloromethane respectively are about
(a) 120^o and 109.5^o(b) 90^o and 109.5^o(c) 109.5^o and 90^o(d) 109.5^o and 120^o

Ans. (a)

The IUPAC name for CH₃CO – CH₃ is
(a) Dimethyl ketone
(b) Acetone
(c) Propanal
(d) Propanone

Ans. (d)

IUPAC name of CH₂ = CH – CH(CH₃)₂ is
(a) 1, 1-dimethyl-2-propene
(b) 3-methyl-1-butene
(c) 2-vinyl propane
(d) 1-isopropyl ethylene

Ans. (b)

Write the IUPAC name of CH₃CH₂COOH
(a) Ethyl formic acid
(b) Ethyl carboxylic acid
(c) Ethane methanoic acid
(d) Propanoic acid

Ans. (d)

Related: ohm’s law quiz

The IUPAC name of the compound having the formula Cl₃C.CH₂CHO is
(a) 3, 3, 3-trichloropropanal
(b) 1, 1, 1-trichloropropanal
(c) 2, 2, 2-trichloropropanal
(d) Chloral

Ans. (a)

The IUPAC name of acraldehyde is
(a) Prop-2-ene–1–al
(b) Propenyl aldehyde
(c) But-2-ene–1–al
(d) Propenal

Ans. (a)

The IUPAC name of CH₃CH₂COCl is
(a) Propanoyl chloride
(b) Ethanoyl chloride
(c) Acetyl chloride
(d) Chloroethane

Ans. (a)

IUPAC name of compound is CH₃ – CH₂ – CH(CH₃) – CH₂ – COCl
(a) 3-methyl pentanoyl chloride
(b) 3-methyl butanoyl chloride
(c) 1-chloro-3-methyl pentanol
(d) None of these

Ans. (a)

If CH₄ is known as methane, then C₉H₂₀is known as
(a) Hexane
(b) Nonane
(c) Octane
(d) Butane

Ans. (b)

IUPAC name of tertiary butyl alcohol is
(a) Butan-1-ol
(b) Butan-2-ol
(c) 2-methyl propan-1-ol
(d) 2-methyl propan-2-ol

Ans. (d)

The IUPAC name of the compound CHO – (CH₂)₄ – COOH
(a) Heaxan-1-al-6-oic acid
(b) Formyl-hexanoic acid
(c) Hexanal-1-carboxylic acid
(d) Hexanoic acid 5-al-1

Ans. (b)

The compound which has one isopropyl group is
(a) 2, 2, 3, 3-tetramethyl pentane
(b) 3, 3-dimethyl pentane
(c) 2, 2, 3-trimethyl pentane
(d) 2-methyl pentane

Ans. (d)

Alicyclic compounds are
(a) Aromatic
(b) Aliphatic
(c) Heterocyclic
(d) Aliphatic cyclic

Ans. (d)

The number of tertiary carbon atoms in the compound (CH₃)₂CHCH₂C(CH₃)₃is
(a) 2
(b) 3
(c) 1
(d) 4

Ans. (c)

Which of the following alkanes contains primary, secondary, tertiary and quaternary carbon atoms together?
(a) (CH₃)₃CH
(b) (C₂H₅)₃CH
(c) (CH₃)₃CCH₂CH(CH₃)₂(d) (CH₃)₄C

Ans. (c)

The IUPAC name of (C₂H₅)₂CHCH₂OH is
(a) 2-ethyl butanol-1
(b) 2-methyl pentanol-1
(c) 2-ethyl pentanol-1
(d) 3-ethyl butanol-1

Ans. (a)

IUPAC name of CH₃CHO is
(a) Acetaldehyde
(b) Methyl aldehyde
(c) Ethanol
(d) Ethanal

Ans. (d)

General formula of alkyne is
(a) C_nH_2n+2(b) C_nH_2n(c) C_nH_2n–2
(d) C_nH_n

Ans. (c)

The IUPAC name of (CH₃)₂CH – CH₂ – CH₂Br is
(a) 1-bromo pentane
(b) 2-methyl and 4 bromo butane
(c) 1-bromo and 3-methyl butane
(d) 2-methyl and 3 bromo propane

Ans. (c)

The IUPAC name of compound CH₃ – C(CH₃)₂ – CH₂ – CH = CH₂ is
(a) 2, 2-dimethyl pent-4-ene
(b) 2, 2 dimethyl-2-pentene
(c) 1, 1, 1-trimethyl but-3-ene
(d) 4, 4-dimethyl pent-1-ene

Ans. (d)

The IUPAC name of CH₃CH(CH₃)COOH is
(a) Dimethyl acetic acid
(b) 2-methyl propanoic acid
(c) Propanoic acid
(d) Butyric acid

Ans. (b)

IUPAC name of the compound CH₃ – CH₂ – CH₂(CH₃)₂ – C – CH₃(a) 1, 1-dimethyl pentane
(b) 2, 2-dimethyl pentane
(c) 1, 2-dimethyl pentane
(d) None of these

Ans. (b)

The IUPAC name of n-butyl chloride is
(a) 1-chlorobutane
(b) n-chlorobutane
(c) ter-butylchloride
(d) 2-methylbutane

Ans. (a)

The IUPAC name of CH₃COOC₂H₅ will be
(a) Ethyl acetate
(b) Ethyl ethanoate
(c) Methyl propanoate
(d) None of these

Ans. (b)

IUPAC name of (CH₃)₃C – CH = CH₂ is
(a) 3,3,3-trimethyl-1-propene
(b) 1,1,1-trimethyl-2-propene
(c) 3,3-dimethyl-1-butene
(d) 2,2-dimethyl-3-butene

Ans. (c)