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Question

Which gas is used for illumination in hawker's lamp?

A
Methane
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B
Ethyne
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C
Butane
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D
Acetylene
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Solution

The correct option is D Acetylene
In gaslights, the gas used was generally coal gas, manufactured by coal, which is mainly hydrogen, methane, and carbon monoxide. Small quantities of “illuminants” like acetylene and ethylene increased the amount of light provided when the gas is burned in an open flame.

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