Which contains both polar and non-polar bonds ? .A. `H_2O_2`B. `CH_4`C

1.	Which contains both polar and non-polar bonds ? .A. `H_2O_2`B. `CH_4`C. `HCN`D. `NH_4Cl`
Answer» Correct Answer - A Such bonds are present in polar covalent compounds only. `NH_4Cl` is ionic, `CH_4` is covalent, but all the bonds between C and H are polar due to electronegativity difference. The Lewis structure of `HCN` is `H-C-=N:`, it also has only polar bonds. In `H_2O_2`, having the Lewis structure `H-overset(..)underset(..)O-underset(..)overset(..)O-H` the bond between like O atoms is nonpolar while the bond between unlike H and O atoms is polar.

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Which contains both polar and non-polar bonds ? .A. `H_2O_2`B. `CH_4`C. `HCN`D. `NH_4Cl`

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