1.

Assertion (A): Pent-1-ene and pent-2-ene are position isomers Reason (R ): Position isomers differ in the position of functional group or a substituent.

Answer»

Both (A ) and (R ) are CORRECT and (R ) is the correct explanation of (A)
Both (A) and R are correct but (R ) is not the correct explanation of (A)
Both (A) and (R ) are not correct
(A) is not correct but (R ) is correct

Solution :`OVERSET(5)( C)H_(3)- overset(4)(C )H_(2)- overset(3)(C )H_(2) - overset(1)(C )H= overset(1)(C )H_(2)` pent-1-ene
`overset(5)(C )H_(3)- overset(4)(C )H_(2)- overset(3)(C )H= overset(2)(C )H- overset(1)( C)H_(3)` pent-2-ene
These both structure CONTAINING `C_(6)H_(10)` molecular formula and same functionation group .allcene. but the position of function group is different, therefore they are position isomers. In it the position of `pi`-BOND is different


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