Environmental Chemistry Quiz-1

Question 1

The gas emitted by supersonic jet planes that slowly depletes the ozone layer is

Accepted Answer

NO

Answer

CO

Answer

$SO_2$

Answer

$O_2$

Question 2

The pH of normal rain water is

Accepted Answer

6.5

Answer

7.5

Answer

5.6

Answer

3.5

Question 3

The process of 'eutrophication' is due to

Accepted Answer

the reduction in concentration of the dissolved oxygen in water due to phosphate pollution in water.

Answer

increase in concentration of insecticide in water .

Answer

increase in concentration of fluoride ion in water.

Answer

attack of younger leaves of a plant by peroxyacetyl nitrate.

Question 4

Excess nitrate in drinking water can cause

Accepted Answer

methemoglobinemia

Answer

kidney damage

Answer

liver damage

Answer

laxative effect

Question 5

The maximum prescribed concentration of cadmium in drinking water in ppm is

Accepted Answer

0.005

Answer

0.05

Answer

3

Answer

2

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