Identify the correct statements from the following
Electromeric effect is a permanent effect.
Hyper conjugation is a temporary effect.
Fractional distillation is used to seprate two liquids from a mixture if the difference in their boiling points is less .
Different compounds are adsorbed on an adsorbent to different extents. the correct answer is

Options

A. ii,iii,iv
B. i,ii,iii
C. ii,iv
D. iii,iv

Answer

D

Explanation

(a) and (b) are incorrect statements as (a) Electromeric effect is a temporary- effect , it only act when reagent is present and vanishes as reagent is removed
(b) Hyper -conjugation is a permanent effect which allows delocalised electrons to move with or without presences of reagent.
Hence, only (c) and (d) are the correct statements