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

Question : 11 [IAS Prelim]

Statement I :
Phenyl is used as a household germicide.
Statement II :
Phenyl is phenol derivative and phenol is an effective germicide.

a) Statement I is true but Statement II is false

b) Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I

c) Both Statement I and Statement II are true and Statement II is the correct explanation of Statement I

d) Statement I is false but Statement II is true

Question : 12

Eutrophication causes reduction in

a) nutrients

b) dissolved salts

c) dissolved oxygen

d) All of these

Question : 13

Minimata disease is a pollution-related disease, which results from –

a) accumulation of arsenic into atmosphere

b) release of industrial waste mercury into fishing water

c) release of human organic waste into drinking water

d) oil spills into sea

Question : 14

Which of the following is not a synthetic fibre:

a) Nylon

b) Rayon

c) Angora

d) Polyester

Question : 15

Which of the following chemicals is used in foam fire extinguishers? [NDA]

a) Cobalt sulphate

b) Copper sulphate

c) Aluminium sulphate

d) Nickel sulphate