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Q.

Is it true that the flame on my LPG gas burner at home is yellow?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is false.
LPG burns with a blue flame. However, in an insufficient supply of oxygen, a flame of yellow colour is obtained. This is caused by unburned carbon atoms shining. When there is a sufficient supply of oxygen, the substances burn completely, producing a non-luminous or blue flame.
The corrected statement would be that, “The flame on the LPG gas burner at home is blue”.
 
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