MCQ
Which of the following contains a coordinate covalent bond
- A${N_2}H_5^ + $
- B$BaC{l_2}$
- C$HCl$
- D${H_2}O$
✓
Answer
$N _2 H _5^{+}$is formed from $N _2 H _4$ which has a lone pair of electrons on $'N'$ and positive charge on $'H'$ takes away its electron and to complete duplet, a coordinate bond is present from $N$ to $H$.
$H _4 N _2+ H ^{+} \rightarrow\left[ H _4 N _2 \rightarrow H ^{+}\right.$
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