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Nitrogen

Nitrogen is u...

Question

Nitrogen is used to fill electric bulbs because:

A

it is lighter than air

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B

it makes the bulb to glow

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C

it does not support combustion

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D

it is non-toxic.

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Solution

The correct option is C it does not support combustion
Nitrogen is used because it doesn't react with the hot filament. Then, it will carry heat away form the filament to cool it.

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