A. Nucleophilic addition B. Electrophylic addition C. Nucleophilic substitution D. None of these

A. In bond lengths B. As it has low value of resonance energy C. As it is less stable D. As it is planar and is easy to draw on the paper

A. An overall positive charge B. Empty orbitals C. An unpaired electron D. A lone pair of electron

A. Differ only in the arrangements of electrons B. Differ only in the number of paired and unpaired electrons C. Differ much in their energy content D. None of these

A. An unpaired electron B. A lone pair of electron C. An overall positive charge D. An overall negative charge

A. Free radicals B. Carbocation C. Carbenes D. None of these