IUPAC Nomenclature

Question 1

Hydrocarbon

Answer 1

Compounds that have at least one carbon and one hydrogen

Question 2

What are the two types of hydrocarbon?

Answer 2

Saturated Bonds - Alkanes (CnH2n+2)
Unsaturated Bonds- Alkenes(CnH2n) and Alkynes(CnH2n-2)

Question 3

One carbon, two carbon, three carbon, four carbon, .. How to name them?

Answer 3

Meth, Eth, Prop, But, Pent, Hex, Hept, Oct, Non, Dec

Question 4

CH4, CH3-CH3

Answer 4

Methane, Ethane

Question 5

CH2=CH2, CH3-CH=CH2

Answer 5

Ethene, Propene

Question 6

CH3-CH=CH-CH3

Answer 6

But-2-ene

Question 6

CH3-CH2-C≡CH

Answer 6

But-1-yne

Question 6

CH≡CH, CH3-C≡CH

Answer 6

Ethyne, Propyne

Question 7

Primary Carbon

Answer 7

A carbon atom which is directly attached with only one carbon

Question 8

Secondary Carbon

Answer 8

A carbon atom which is directly attached with two carbon atoms

Question 9

Tertiary Carbon

Answer 9

A carbon atom which is directly attached with three carbon atoms

Question 10

Quarternary Carbon

Answer 10

A carbon atoms which is directly attached with four carbon atoms

Question 11

Name of F, Cl, Br, I, NO2, NO, NH2

Answer 11

Flouro, Chloro, Bromo, Iodo, Nitro, Nitroso, Amino

Question 12

Ch4 - H

Answer 12

Methyl(CH3)

Question 13

Free valent carbon

Answer 13

Carbon that attaches principal carbon chain is called free valent carbon.

Question 14

n-Alkanes, Iso-alkane, Neo-alkane

Answer 14

Hydrocarbon arranged in a straight chain without branching
If hydrocarbon has n-no. of carbon atoms, then attach (n-1) carbon chain in a straight line and the remaining carbon atom with the second carbon from the left.
If a hydrocarbon contains n-no. of carbon atoms, then (n-2) in a straight chain and the remaining two carbon atoms with 2nd carbon from the left.

Question 15

What is the priority order of substituent, double or triple bond and functional groups?

Answer 15

Functional Group> Double or Triple Bond> Substituent

Question 16

Secondary suffix and secondary prefix of alcohol(OH)

Answer 16

ol and Hydroxy

Question 17

Secondary suffix, secondary prefix and special suffix of carboxylic acid(COOH)

Answer 17

oic, carboxy and carboxylic acid

Question 18

What is the use of special suffix?

Answer 18

When in a parent carbon chain contains more than two carboxyl group and when carboxyl group attached with a cyclic ring

Question 19

Secondary suffix, secondary prefix and special suffix of esters(RCOOR)

Answer 19

oate, Alkoxy carbonyl and carboxylate

Question 20

Secondary suffix, secondary prefix and special suffix of aldehyde(CHO)

Answer 20

al, oxo or formy, carbaldehyde

Question 21

HCOH, CH3COH

Answer 21

Methanol, Ethanol

Question 22

Secondary suffix, secondary prefix and special suffix of ketone(RCOR’)

Answer 22

one, keto or oxo and no special suffix

Question 23

CH3COCH3

Answer 23

Propanone

Question 24

Secondary suffix, secondary prefix of amines(NH2)

Answer 24

Amine, Amino

Question 25

CH3-NH-CH3

Answer 25

N-Methyl Methane Amine

Question 26

CH3-NH-CH2-CH3

Answer 26

N-methyl Ethane Amine

Question 27

Secondary suffix, secondary prefix and special suffix of amides(RCONH2)

Answer 27

Amide, Carboxamido, Carboxamide

Question 28

Secondary Prefix of Ethers(OR)

Answer 28

Alkoxy

Question 29

CH3-O-CH3

Answer 29

Methoxy Methane

Question 30

CH3-O-CH2-CH3

Answer 30

Ethoxy Ethane

Question 30

Epoxy(-O-)

Answer 30

Cyclic Esters

Question 30

Secondary suffix, secondary prefix and special suffix of cyanide(-CN)

Answer 30

NItrile, Cyano and carbonitrile

Question 31

CH3-CN

Answer 31

Ethane Nitrile