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Question

On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane. This alkane could be

A
Pentane
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B
Isopentane
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C
Neopentane
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D
Propane
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Solution

The correct option is C Neopentane
Neopentane, also called 2,2-dimethylpropane, is a doubly branched chain alkane with five carbon atoms with formula;CH3C(CH3)2CH3. In neopentane all the H atoms are same (1o).

Thus it gives only one mono chloroalkane on chlorination.
Hence, the correct answer is option (c).

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