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

organic chemistry PRACTICE TEST [3 - EXERCISES]

objective questions set 1

set 2

set 3

Question : 6

The order of appearance of the following with increasing temperature during the refining of crude oil is _____________ .

a) Gasoline, kerosene, diesel

b) Kerosene, gasoline, diesel

c) Diesel, gasoline, kerosene

d) Gasoline, diesel, kerosene

Answer: (a)

Petroleum products are usually grouped into three categories:

  1. Light distillates (LPG, gasoline, naphtha),
  2. Middle distillates (kerosene, diesel),
  3. Heavy distillates and residuum (heavy fuel oil, lubricating oils, wax, asphalt).

Hence, the correct option would be Gasoline, kerosene, and diesel.

Question : 7 [IAS Prelim]

The characteristic odour of garlic is due to

a) a sulphur compound

b) a fluorine compound

c) a chloro compound

d) acetic acid

Answer: (a)

Question : 8 [IAS Prelim]

Assertion (A) :
The main constituent of the liquefied petroleum gas is methane.
Reason (R) :
Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.

a) Both A and R are true but R is not the correct explanation of A

b) A is true but R is false

c) Both A and R are true and R is the correct explanation of A

d) A is false but R is true

Answer: (d)

Question : 9

Which is a general formula of alkenes?

a) CnH2n–2

b) CnH2n

c) CnH2n+2

d) None of these

Answer: (c)

Question : 10

Two adjacent members of a homologous series have :

a) same general methods of preparation

b) a difference of 14 a.m.u. in molecular mass

c) a difference of –CH2 in their structure

d) all of the above

Answer: (d)

IMPORTANT general science mcq EXERCISES

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1702 organic chemistry based general science mcq objective questions set 1 question answer with explanation pdf
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