Assertion :Nitrogen gas is filled in electric bulbs. Reason: Nitrogen is colorless, odorless and tasteless gas.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Nitrogen is filled in bulbs because it doesn't react with the hot filament. Also, it decreases the evaporation of tungsten from the filament.
Hence Assertion is correct.
Nitrogen is a colourless, odourless and tasteless gas(properties).
Hence reason is correct
and Reason is not the correct explanation of assertion.

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