1.

Vapour phase nitration of propane followsA. electrophilic substitution mechanismB. free radical substitution mechanismC. nucleophilic substitution mechanismD. electrophilic addition mechanism.

Answer» Correct Answer - B
`HO-NO_(2) overset(400^(@)C)(rarr) Hoverset(*)(O)+overset(*)(N)O_(2)` ltbr. `R-H+ overset(*)(N)O_(2) overset(overset(*)(O)H)(rarr) RNO_(2)+H_(2)O`


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