Halides of Group 16

Q. Among the following, the number of halide(s) inert to hydrolysis is
(a) $B{F}_3$
(b) $SiC{l}_4$
(c) $PC{l}_5$
(d) $S{F}_6$

Q. $S{F}_4$ is used as fluorinating agent in organic reactions because it dissociates easily.

1. True
2. False

Q. $S{F}_4$ can act as Lewis acid in the presence of strong Lewis base and as Lewis base in the presence strong Lewis acid.

1. True
2. False

Q.

What is the hybridization and geometry of \(SF_4\) ?

Q. Which of the statements given below is incorrect?

1. $O_3$ molecule is bent.
2. ONF is isoelectronic with $O_2{N}^{-}$.
3. $O{F}_2$ is an oxide of fluorine.
4. $C{l}_2{O}_7$ is an anhydride of perchloric acid.

Q.

Which of the following statements are correct about $S{F}_4$?

1. It is prepared by treating $SC{l}_2$ with a fluoride like $NaF$ in acetonitrile.

2. Its initial hydrolysis gives $S{O}_2$ and $HF$.

3. It has a square planar shape with the sulphur atom having 2 lone pairs.

4. $S$ atom has an expanded octet.

Q. Compare bond angles for the following molecules:

1. x > y
2. x = y
3. None of these
4. y > x

Q. $S{F}_6$ is inert because of steric hindrence to the central atom.

1. True
2. False

Q. $S{F}_6$ is stable (thermally) than/as $Se{F}_6$.

1. less
2. more
3. almost as

Q. The oxide of chlorine having the maximum oxidizing power is :

1. $C{l}_2{O}_7$
2. $C{l}_2{O}_6$
3. $C{l}_{2}O$
4. $Cl{O}_2$