MCQ
White phosphorus reacts with thionyl chloride to give
- A$PCl _{5}, SO _{2}$ and $S _{2} Cl _{2}$
- ✓$PCl _{3} . SO _{2}$ and $S _{2} Cl _{2}$
- C$PCl _{3}, SO _{2}$ and $Cl _{2}$
- D$PCl _{5}, SO _{2}$ and $Cl _{2}$
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$CH_3 (CH_2)_8CH_2Br \xrightarrow[benzene]{KCN} CH_3 (CH_2)_8CH_2CN$
$(I)$ They have high melting points, higher than those of pure metals
$(II)$ They are very hard
$(III)$ They retain metallic conductivity
$(IV)$ They are chemically more reactive than the pure metals