1.

Assertion (A): Propene CH_(3)CH= CH_(2) is a neutral molecule and it have three conjugate structures. Reason (R ): There C-H bond present in CH= CH_(2) of propane

Answer»

Statement (A) and Reason (R ) both are right. Statement (R ) is correct explanation of statement (A)
Statement (A) and Reason (R ) both are right, but (R ) is not correct explanation of statement (A)
Both Statement (A) and (R ) are wrong
Statement (A) is right but statement (R ) is wrong

Solution :Three hyperconjugation structure of propene are as under (I), (II) and (III)

There are three C-H bond in `CH= CH_(2)` in propene so, it is also correct

Three hyperconjugation structures are present three `C- H sigma`-bond in `CH_(3)` group NEED to `CH= CH_(2)`. So all `sigma` electron of three C-H bond migrate TOWARDS `SP^(2)` carbon and three `= C overset(oplus)(H)` structure form


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