Q. 54.0( 3 Votes )

Who am I?

(a) I am found in clouds and mist.

(b) I am used in aerated drinks.

(c) I am used in an electric bulb.

(d) I form 78% of air.

(e) I am used in the production of nitric acid.

Answer :

(a) Water vapour

Explanation:

Clouds and fogs are formed by the condensation of water vapour.

(b) Carbon dioxide

Explanation:

Carbon dioxide is used in aerated drinks. When you open the cap of a drink, you can see the pressure gushes out of the bottle. That pressure is only due to the carbon dioxide present in it.


(c) Inert gas (Argon)

Explanation:
Inert gas like argon gas is used in electric bulbs. As soon as the electricity flows into the bulb, it heats the tungsten wire filament.

Note: Inert gas is gas which does not react and burn in any way.


(d) Nitrogen

Explanation:
Nitrogen is constitutes 78% of air. It is one of the important constituent of air.


(e) Nitrogen

Explanation:
Nitrogen is used in industry for the large-scale production of nitric acid (HNO3)

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