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Question


Which of these is used to repel moths?


Options:
A .   Naphthalene balls 
B .   Bitumen
C .   Coal gas
D .   Paraffin wax
Answer: Option A
:
A

Naphthalene or mothball is a white solid with a pungent odour derived from the distillation of coal tar. It sublimes into a pungent toxic smell which drives away insects and moths. 



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