What happens when ethene burns in the air if the supply of air is in excess?

Carbon monoxide is produced

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Carbon dioxide is produced

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Hydrogen gas is produced

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Oxygen gas is produced

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Solution

The correct option is B
Carbon dioxide is produced

Ethene burns in air with a sooty flame producing a large amount of energy. However, if the supply of air is in excess, it burns with a pale blue flame to produce carbon dioxide, water and a large amount of heat.

$C_{2} H_{4} + 3 O_{2} \to 2 C O_{2} + 2 H_{2} O + H e a t$

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