MCQ
Correct statement is
- ✓$F -F > Cl -Cl$ bond dissociation energy
- B$HI > HBr > HCl > HF$ thermal stability
- C$HI > HBr > HCl > HF$ reducing power
- DNone of these
✓
Answer
Correct option: A.
$F -F > Cl -Cl$ bond dissociation energy
a
$(a)$ Aqueous hydrolysis of $CCl_4$ is not possible due to absence of vacant orbital on carbon, while hydrolysis of $MgCl_2, AlCl_3 , SiCl_4$ and $PCl_5$ is possible. Extent of hydrolysis is proportional to the amount of positive formation charge present on the atomic site prone to attack of $H_2O$ molecules. $CCl_4 < MgCl_2 < AlCl_3 < SiCl_4 < PCl_5$
$(a)$ Aqueous hydrolysis of $CCl_4$ is not possible due to absence of vacant orbital on carbon, while hydrolysis of $MgCl_2, AlCl_3 , SiCl_4$ and $PCl_5$ is possible. Extent of hydrolysis is proportional to the amount of positive formation charge present on the atomic site prone to attack of $H_2O$ molecules. $CCl_4 < MgCl_2 < AlCl_3 < SiCl_4 < PCl_5$
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