Reason
The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion.
Assertion
All $$F-S-F$$ angle in $$SF_4$$ greater than $$90^{\circ}$$ but less than $$180^{\circ}$$.
All $$F-S-F$$ angle in $$SF_4$$ greater than $$90^{\circ}$$ but less than $$180^{\circ}$$.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Assertion is incorrect and Reason is correct
Correct option is C. Assertion is correct but Reason is incorrect
$$SiF_4$$ have $$sp^3$$ hybridization and shape of regular tetrahedral where the bond angle of $$109.5^{\circ}$$which is greater than $$90^{\circ}$$ but less than $$180^{\circ}$$ .
Repulsion sequence are $$Lp -Lp > Lp-Bp >Bp-Bp$$
Therefore, assertion are true and reason is false.