MCQ
Mercury is a liquid at $0\,^o C$ because of
- Avery high ionisation energy
- Bweak metallic bonds
- Chigh heat of hydration
- ✓Both $(a)$ and $(b)$
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$(i)$ Chlorobenzene
$(ii)$ Benzene
$(iii)$ Anilinium chloride
$(iv)$ Toluene

Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline