Question

Assertion (A) $SF _{6}$ cannot be hydrolysed but $SF _{4}$ can be.
Reason (R) Six F-atoms in $SF _{6}$ prevent the attack of $H _{2} O$ on sulphur atom of $SF _{6}$.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct; $R$ is incorrect.
• D. $R$ is correct; $A$ is incorrect.

Answer 1

Answer: (A)

Both Assertion and Reason both are correct and Reason is the correct explanation of Assertion. $SF _{4}$ can be hydrolysed but $SF _{6}$ can not because six F-atoms in $SF _{6}$ prevent the attack of $H _{2} O$ on sulphur atoms of $SF _{6}$.