question_answer 103)

    Assertion (A) SF6 cannot be hydrolysed butSF4 can be. Reason (R) Six F-atoms in SF6 prevent the attack of H2O on sulphur atom Of SF6.

Answer:

                    (a) Assertion and reason both are true and reason is the correct explanation of assertion. SF4 can be hydrolysed but SF6 cannot because six F-atoms in SF6 prevent the attack of H2O on sulphur atoms of SF6.