Question

2. When air is passed through lime water it turns milky. This is due to
a) water vapour
b) carbon-di-oxide c) nitrogen
d) oxygen
around the earth is called​

Answer 1

Answer:

CARBON DIOXIDE

Explanation:

GOOD EVENING

Answer 2

Answer:

b) carbon dioxide

When carbon dioxide is passed through lime water for a short time,it turns lime water milky due to formation of a white precipitate of calcium carbonate.

Exhaled air contains less oxygen and more carbon dioxide.

The carbon dioxide present in exhaled air turns lime water milky.

So the correct answer is 'Carbon dioxide'.

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