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

environmental chemistry PRACTICE TEST [3 - EXERCISES]

set 1

set 2

set 3

Question : 21 [CDS]

Which one of the following is used as a mordant in dyeing and tanning industry?

a) Magnesium chloride

b) Magnesium carbonate

c) Magnesium oxide

d) Magnesium sulphate

Answer: (c)

Question : 22

Chipko movement is concerned with –

a) plant breeding

b) project tiger

c) plant conservation

d) animal breeding

Answer: (c)

Question : 23 [NDA]

Which one of the following acids is used for etching glass?

a) HF

b) HNO3

c) H2SO4

d) HCl

Answer: (a)

Question : 24 [IAS Prelim]

Consider the following chemicals:

  1. Benzene
  2. Carbon tetrachloride
  3. Sodium carbonate
  4. Trichloroethylene
Which of the above/is are used as dry cleaning chemical?

a) 1, 2 and 4 only

b) 2 only

c) 1 only

d) 1, 2, 3 and 4

Answer: (a)

Question : 25

The smog is essentially caused by the presence of

a) O2 and N2

b) O2 and O3

c) Oxides of sulphur and nitrogen

d) O3 and N2

Answer: (c)

Smog is caused by oxides of sulphur and nitrogen.

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