Which bond in each pair is more polar
(a) `P-CI` or `P - Br` (b) `S -CI` or `S-O` (c) `N-O` or `N-F`

Which in each pair of elements has a more negative electron gain enthalpy? (a) F or Cl^- ,( b) O or O^- ,( c) Na^+ or S , ( d) F or F^-

(a) Draw the structures of major monohola prodcuts in each of the following reactions : 3 (i) (b) Which halogen compound in each following pairs will react faster in S_(N)2 reaction (i) CH_(3)Br or CH_(3)I (ii) CH_(3)C-CI or CH_(3)-CI

Identify which of them are polar and non-polar (a) HF (b) BeCI_(2) (c ) HgCI_(2) (d) NH_(3) (e) H_(2)O (f) N_(2) (g) AICI_(2) (h) C CI_(4) (i) CI_(2) (j) SiCI_(4) .

Identify which of them are polar and non-polar (a) HF (b) BeCI_(2) (c ) HgCI_(2) (d) NH_(3) (e) H_(2)O (f) N_(2) (g) AICI_(3) (h) C CI_(4) (i) CI_(2) (j) SiCI_(4) .

Which of the following orders for electron affinity is/are correct? (a) S gt O lt Se ,(b) Cl gt F , (c) S gt O , (d) O gt S , (e) N gt P , (f) C gt N

What types of bonds will be formed between the following pairs of elements and why? (a) K, CI (b) Ca, S (C)N, H (d) C, O

Which one of the following pairs has higher Delta_(eg)H^(ɵ) ? (a) S^(ɵ), O , (b) N^(ɵ), P (c ) S, O^(ɵ) , (d) O^(ɵ), S^(ɵ)

Which one of the following pairs has higher Delta_(eg)H^(ɵ) ? (a) S^(ɵ), O , (b) N^(ɵ), P (c ) S, O^(ɵ) , (d) O^(ɵ), S^(ɵ)