organic chemistry - Category wise Question and Answer Practice Test with Solutions

Question : 16 [IAS Prelim]

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

a) amyl alcohol

b) benzyl alcohol

c) ethyl alcohol

d) methyl alcohol

Question : 17

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

a) oxidase

b) acetobacter

c) zymase

d) invertase

Question : 18

The general formula C_nH_2nO₂ could be for open chain

a) diols

b) carboxylic acids

c) diketones

d) dialdehydes

Question : 19

Which among the following are unsaturated hydrocarbons?

1. $H_3C - CH_2 - CH_2 - CH_3$
2. $H_3C - C ≡ C - CH_3$
3. $H_3C - {CH} ↙{|} ↙{CH_3} - CH_3$
4. $H_3C - {CH} ↙{|} ↙{CH_3} = CH_3$

a) (ii) and (iv)

b) (ii) and (iii)

c) (i) and (iii)

d) (iii) and (iv)

Question : 20

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