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Properties and Uses of Noble Gases

Assertion: Ar...

Question

Assertion: Argon gas is filled in the electric bulb.

Reason: Argon does not react with the filament in an electric bulb even at high temperature.

A

Both assertion and reason are true and reason is the correct explanation of assertion.

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B

Both assertion and reason are true but reason is not the correct explanation of assertion.

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C

Assertion is true but reason is false.

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D

Assertion is false but reason is true.

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Solution

The correct option is A Both assertion and reason are true and reason is the correct explanation of assertion.
Argon is filled in electric bulbs. It increases bulb life by preventing the deterioration of tungsten filament. It does not react with the filament of an electric bulb even at high temperature.

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