KEAM 2016 Physics and Chemistry Paper

(A) Electron deficient →B2H6 ( ∵ It has 3c−2e structure, which shows that B-atom has electron deficient centre).
(B) Saline →LiH is called saline.
(C) Electron precise →CH4 ( ∵ It has perfect complete octet for C-atom).
(D) Interstitial → CrH Here, hydrogen atoms are trapped in the interstitial sites of crystal of Cr.
(E) Electron rich →NH3, because nitrogen has lone pair of electrons in its outermost shell.

Hence, correct order is (A)- (iv), (B)- (i), (c)- (ii), (D) −(v), (E) - (iii)