MCQ
A lone pair of electrons in an atom implies:
- AA pair of valence electrons.
- BA pair of electrons.
- CA pair of electrons involved in bonding.
- DA pair of electrons not involved in bonding.
Explanation:
A lone pair of electrons is a pair of electrons that do not take part in bonding.
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$_H^{Br} > \mathop C\limits_1 = \mathop C\limits_2 < _H^{Br}$ $\xrightarrow[{Catalyst}]{{{H_2}}}Br\mathop {C{H_2}}\limits_3 \mathop {C{H_2}}\limits_4 Br$