Agricultural And Industrial Chemistry PYQs — 9 UPSC CSE Previous Year Questions

Question 1

What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

Accepted Answer

B. These are explosives in military weapons

Question 2

In India, the use of carbofuran, methyl parathion, phorate and triazophos is viewed with apprehension. These chemicals are used as

Accepted Answer

A. pesticides in agriculture

Question 3

Which one of the following is used as an explosive?

Accepted Answer

D. Nitroglycerine

Question 4

Which one of the following is another name of RDX?

Accepted Answer

D. Cyclonite

Question 5

Which one among the following is called philosopher's wool?

Accepted Answer

C. Zinc oxide

Question 6

Consider the following chemicals: Benzene Carbon tetrachloride Sodium carbonate Trichloroethylene Which of the above/is are used as dry cleaning chemical?

Accepted Answer

C. 1, 2 and 4 only

Question 7

Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer using the codes given below the Lists:

List I	List II
I. Cracking	A) Rubber
II. Smelting	B) Petroleum
III. Hydrogenation	C) Copper
IV. Vulcanization	D) Edible fats

Codes:

Accepted Answer

B. I­B, II­C, III­D, IV­A

Question 8

Match List-I with List-il and select the correct answer using the codes given below the lists:

	List-I		List-II
A.	Potassium bromide	1.	Fertiliser
B.	Potassium nitrate	2.	Photography
C.	Potassium sulphate	3.	Bakery
D.	Monopotassium tartarate	4.	Gun powder

Codes:
ABCD

Accepted Answer

A. 2413

Question 9

Which one of the following is used as an anti-freeze for the automobile engines?

Accepted Answer

D. Ethylene glycol