Dr.R.Kalirajan Lecture Notes: September 2018

POC_NOMENCLATURE_MCQ

1.One of the following is an example for alicyclic compound

A) Cyclohexane
B) Toluene

C) Pyridine
D) Furan

2.  One of the following is an example for aromatic compound

A) Cyclohexane
B) Toluene

C) n-heptene
D) cycloheptene

3.One of the following is an example for heterocyclic compound

A) Cyclohexane

B) Toluene

C) benzene

D) Pyridine

4.The International Union of Pure and Applied Chemistry was formed in the year

A) 1955

B) 1957

C) 1958

D) 1959

5. The identical groups are present on opposite sides is called as

A) Dextro isomer

B) Cis isomer

C) Trans isomer

D) Optical isomer

6.The identical groups are present on same side is called as

A) Dextro isomer

B) Cis isomer

C) Trans isomer

D) Optical isomer

7.The IUPAC Nomenclature the compound CH3CH(OH)CH2CH(CH3)COOH is A) 2-Hydroxy-4-methylpentanoicacid

B) 4-Hydroxy-2-methylpentanoicacid
C) 4-Carboxy-4-methyl 2-butanol

D) 1-Carboxy-2-methyl 4-pentanol

8.Two isomeric forms of a saturated hydrocarbon have

A) Same structure

B) different compositions of elements.
C) Same molecular formula

D) different content of hydrogen isotopes

9.Which of the following compoundproduce optical isomerism?

A) CH2(OH)-CH2(OH)

B) CH3-CHCl-COOH
C) CH2=CHCl
D) CHCl=CHCl

10.IUPAC nomenclature is prefixed by

A) functional group

B) parent chain

C) stereo isomeric charector

D) bond type

11.IUPAC nomenclature is suffixed by

A) functional group

B) parent chain

C) stereo isomeric charector

D) bond type

12.The optical isomerism is possible for a compound containing

A) functional group

B) chiral carbon

C) minimum three carbons

D) double bond

13.The General Formula for alkane is

A) C_nH_{2n + 2}

B) C_nH_{2n - 2}

C) C_nH_2n

D) C_nH_{2n + 1}
_14.The General Formula for alkene is

A) C_nH_{2n + 2}

B) C_nH_{2n - 2}

C) C_nH_2n

D) C_nH_{2n + 1}
15. The General Formula for cycloalkane is

A) C_nH_{2n + 2}

B) C_nH_{2n - 2}

C) C_nH_2n

D) C_nH_{2n + 1}

16. In IUPAC system Prefix iso- is used for those alkanes which have a methyl group (CH₃-) attached to the

A) last carbon

B) second last carbon

C) ring

D) Third carbon

17.In IUPAC system Prefix neo- is used for those alkanes which have two methyl group (CH₃-) attached to the

A) last carbon

B) second last carbon

C) ring

D) Third carbon

18.A carbon atom attached to one other carbon atoms is called as

A)primary carbon

B)secondary carbon

C)tertiary carbon

D)Quartenary carbon

19.A carbon atom attached to two other carbon atoms is called as

A)primary carbon

B)secondary carbon

C)tertiary carbon

D)Quartenary carbon

20.A carbon atom attached to three other carbon atoms is called as

A)primary carbon

B)secondary carbon

C)tertiary carbon

D)Quartenary carbon

21.The IUPAC name of the compound CH₃ CH₂ CH(CH₃)CH₃is

A)n-pentane

B)2-methyl butane

C) neo pentane

D)1-methyl butane

22.In IUPAC system, if more than one substitution, they are written in

A) Alphabet order

B) Molecular weight order

C) Attached position order

D) Atomic weight order

23.The minimum no. of carbons required to form cycloalkane

A) 01

B) 02
C) 03
D) 04

24.In IUPAC system, for naming aldehyde by dropping the final-e from the name of corresponding alkane, and adding the

A) -ol

B) -al

C) -aldehyde

D) -ald

25.In IUPAC system, for naming ketone by dropping the final-e from the name of corresponding alkane, and adding the

A) -on

B) -one

C) -ketone

D) -ket

26.The IUPAC name of acetic acid is

A) methanoic acid

B) ethanoic acid

C) propanoic acid

D) butyric acid

27.The amines which have one alkyl group attached to the nitrogen atom is called as.

A)primary amine

B)secondary amine

C)tertiary amine

D)Quartenary amine

28.The amines which have two alkyl group attached to the nitrogen atom is called as.

A)primary amine

B)secondary amine

C)tertiary amine

D)Quartenary amine

29.The amines which have three alkyl group attached to the nitrogen atom is called as. A)primary amine

B)secondary amine

C)tertiary amine

D)Quartenary amine

30.The amines which have four alkyl group attached to the nitrogen atom is called as. A)primary amine

B)secondary amine

C)tertiary amine

D)Quartenary amine

31.Which of the following is principal functional group?

A) Amide

B) carboxylic acid
C) Aldehyde

D) Ketone

32.f a compound contains both -OH and -COOH group, the IUPAC name is suffixed with A) ol

B) Hydroxyl
C) Acid

D) carboxyl

33.Pentane and 2-methyl butane are example for ___________ isomerism

A) Chain

B) Position
C) Functional

D) Optical

34. Ethylalcohol and dimethylether are example for ___________ isomerism

A) Chain

B) Position
C) Functional

D) Optical

35.Spontaneous inter conversion of two isomeric forms with different functional groups is called as A) Chain isomerism

B) Position isomerism
C) Functional group isomerism

D) Tautomerism

36.Methyl propyl ether and dimethyl ether are example for

A) Chain isomerism

B) Tautomerism
C) Functional group isomerism

D) Metamerism

37. The isomers arise because of the possibility of branching in carbon chains is known as A) Skeletal isomerism

B) Tautomerism
C) Functional group isomerism

D) Metamerism

38.The following isomerism are known as stuctural isomerism EXCEPT

A) Skeletal isomerism

B) Tautomerism
C) Geometrical isomerism

D) Metamerism

39.One of the following name format is correct as per IUPAC system

A) 2,methyl, 1,3 butadiene

B) 2-methyl-1,3-butadiene
C) 2 methyl-1-3-butadiene

D) 2-methyl,1,3 butadiene

40.The geometrical isomerism is possible for a compound containing

A) functional group

B) chiral carbon

C) minimum three carbons

D) double bond

41.Saturated hydrocarbons are otherwise referred as
a) Alkanes
b) Alkenes
c) Alkynes
d) Alkaloids

42.The substituent in the chain is named by replacing the “ane” in the alkanes by

a) ene
b) ic
c) one
d) yl

43.Identify the smallest alkane which can form a ring structure (cycloalkane)

A)Cyclomethane B) Methane
C) Cyclopropane
D) Propane

44.The IUPAC name of (CH3)2CH-CH2-CH2-Br is

A) 1-A)Bromopentane
B) 2-Methyl-4-bromobutane
C) 1-Bromo-3-mehtylbutane
D) 2-Methyl-3-bromopropane

45.The IUPAC name of acetic acid is

A) methanoic acid

B) ethanoic acid

C) propanoic acid

D) butyric acid

46.The International Union of Pure and Applied Chemistry was formed in the year

A) 1955

B) 1957

C) 1958

D) 1959

47.In IUPAC system, for naming aldehyde by dropping the final-e from the name of corresponding alkane, and adding the

A) -ol

B) -al

C) -aldehyde

D) -ald

48.In IUPAC system, if more than one substitution, they are written in

A) Alphabet order

B) Molecular weight order

C) Attached position order

D) Atomic weight order

49.IUPAC nomenclature is suffixed by

A) functional group

B) parent chain

C) stereo isomeric charector

D) bond type

50.In IUPAC system Prefix iso- is used for those alkanes which have a methyl group (CH₃-) attached to the

A) last carbon

B) second last carbon

C) ring

D) Third carbon

Dr.R.Kalirajan Lecture Notes

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Tuesday, September 18, 2018

POC_NOMENCLATURE_MCQ

Cycloalkanes