IUPAC nomenclature and Isomerism

How many hydrogens does butane have?

• 6
• 8
• 10
• 12

Name the following molecule:

• 3,3-dimethyl-1-butanol
• 3,3-methyl-1-butanol
• 2,2-dimethyl-4-butanol
• 3,3,3-trimethyl-1-propanol

Name the following molecule?

• 2,3-dichlorobutene
• cis-2,3-dichlorobutene
• trans-2,3-dichlorobutene

CH3 – CH2 – CO – NH2

• ethanamide

• propanamide

• 1-aminopropane-1-one

• butylethanoate

• ethylbutanoate

• methylbutanoate

Isomerism that arises out of the difference in spatial arrangement of atoms or groups about the doubly bonded carbon atoms are called?

• Structural Isomerism

• Stereoisomerism

• Geometrical Isomerism

• Optical Isomerism

How to determine that a molecule exhibit cis-trans isomerism?

• Restricted rotation in a carbon-carbon single bond of alkenes

• Each carbon of a site of restricted rotation has 2 different atoms or groups attached to it

• Exist in cyclic compouds only

• Similar chemical properties

Two optical isomers have the same

• Empirical formula

• Structural formula

• Molecular formula

Isomerism exhibited by acetic acid and methyl formate is

• position

• chain

• functional

• metamerism

Which of the following compound(s) exhibit(s) cis-trans isomerism?

(1) 1,2-dibromo-1,2-dichloroethene

(2) 3,3-dibromo-2-chloropropene

(3) 1,2-dichloropropene

• (1) only

• (2) only

• (1) and (3) only

• (2) and (3) only