set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

General formula of alkenes and alkyl radicals are respectively:

a) C_nH_2n–1 and C_nH_2n

b) C_nH_2n and C_nH_2n+2

c) C_nH_2n and C_nH_2n+1

d) C_nH_2n+1 and C_nH_2n+2

Question : 2

If a hydrocarbon has any double bond, it is

a) alkene

b) alkane

c) alkyne

d) All the above

Question : 3

Methane, ethane and propane are said to form a homologous series because all are

a) aliphatic compounds

b) saturated compounds

c) hydrocarbons

d) differ from each other by a CH₂ group

Question : 4

The general formula C_nH_2nO₂ could be for open chain

a) diols

b) carboxylic acids

c) diketones

d) dialdehydes

Question : 5

The enzyme involved in the oxidation of ethanol to form vinegar is

a) oxidase

b) acetobacter

c) zymase

d) invertase

Question : 6

The offending substance in the liquor tragedies leading to blindness etc., is

a) amyl alcohol

b) benzyl alcohol

c) ethyl alcohol

d) methyl alcohol