MCQ
Given below ion formed by the combination of :
- ✓$H _2 O$ molecule and $H ^{+}$ion
- B$Cl _2 O$ molecule and $CHO ^{+}$ion
- C$HCl _2 O$ molecule and $H ^{+}$ion
- D$Cl _2$ molecule and $H ^{+}$ion
✓
Answer
Correct option: A.
$H _2 O$ molecule and $H ^{+}$ion
(a) $H _2 O$ molecule and $H ^{+}$ion
Explanation : This ion is formed by the combination of $H _2 O$ molecule and $H ^{+}$ion. The oxygen in water has two lone pairs of electrons. $H ^{+}$ion has required 2 more electrons to complete its duplet. During the formation of $H _3 O ^{+}$, one lone pair (2 electrons) from O atom is donated to the $H ^{+}$ion and oxygen-hydrogen co-ordinate bond is formed.
Explanation : This ion is formed by the combination of $H _2 O$ molecule and $H ^{+}$ion. The oxygen in water has two lone pairs of electrons. $H ^{+}$ion has required 2 more electrons to complete its duplet. During the formation of $H _3 O ^{+}$, one lone pair (2 electrons) from O atom is donated to the $H ^{+}$ion and oxygen-hydrogen co-ordinate bond is formed.
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