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 - CI, H_(3)C - " Br "

Few pairs of molecules are given below. Which bond of the molecule of

1.	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 - CI, H_(3)C - " Br "
Answer» C - Br, C - N, C - 0 , C - Br C - Br, C - 0 , C - 0 , C - CL C - Br, C - N, C - S, C - Cl C - Br, C - 0 , C - S, C- Br Solution :(i) Br is more electronegative than H. (ii) 0 is more electronegative than N. (iii) 0 is more electronegative than S. (iv) Cl is more electronegative than Br.