76 (vi) Why is argon used in filling electric bulbs?

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Solution

Argon is an inert gas and therefore it does not reacts with tungsten even when the temperature is very high and thus protects the bulb from burning in presence of oxygen.
It is anti-corrosive and thus prevents the corrosion of tungsten filament.

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Q. Argon gas is used in electric bulbs.

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Q. (c) Give reason: Argon is filled in electric bulbs.

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Q. 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.

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76 (vi) Why is argon used in filling electric bulbs?

Argon is an inert gas and therefore it does not reacts with tungsten even when the temperature is very high and thus protects the bulb from burning in presence of oxygen. It is anti-corrosive and thus prevents the corrosion of tungsten filament.

Argon is an inert gas and therefore it does not reacts with tungsten even when the temperature is very high and thus protects the bulb from burning in presence of oxygen.
It is anti-corrosive and thus prevents the corrosion of tungsten filament.