Question

Few pairs of molecules are given below. Which bond of the molecule of the pairs is more polar?

(i) $H_{3}C - H,H_{3}C - Br$

(ii) $H_{3}C - NH_{2},H_{3}C - OH$

(iii) $H_{3}C - OH,H_{3}C - SH$

(iv) $H_{3}C - Cl,H_{3}C - Br$

• A. C – Br, C – N, C – O, C – Br
• B. C – Br, C – O, C- O, C – Cl
• C. C – Br, C – N, C – S, C – Cl
• D. C – Br, C – O, C – S, C – Br

Answer 1

Answer: (B)

C – Br, C – O, C- O, C – Cl

Answer 2

: (i) Br is more electronegative than H.

(ii) O is more electronegative than N.

(iii) O is more electronegative than S.

(iv) Cl is more electronegative than Br.