question_answer

Match the items given in column I with those in column II and choose the correct option given below.

	Column I		Column II
I.		P.
II.		Q.
III.		R.
IV.		S.

Options:

A) I - Q               II - P      III - R      IV - S

B) I - P               II - Q     III - R      IV - S

C) I - R               II - P      III - S      IV - Q

D) I - S               II - R      III - Q      IV - P

Correct Answer: A

Solution :

[a] (I) It is an example of Hofmann exhaustive elimination, it gives less-substituted alkene. (II) Elimination of RX (except RF) with non-bulky base gives Saytzeff alkene (more substituted) but with bulky base gives Hofmann alkene (less substituted). (III) It is an example of Cope reaction. It gives less-substituted alkene. (IV). Same explanation as in (II) above.