Chlorides of Phosphorus

Q.

The anion of acetylacetone (acac) Forms $\mathrm{Co}{\left(\mathrm{acac}\right)}_3$Chelates With ${\mathrm{Co}}^{+3}$. The rings of the chelates are _________.

1. Six Membered

2. Five Membered

3. Four Membered

4. Three Membered

Q. The reaction of $C{l}_2$ gas with cold dilute and hot concentrated NaOH in water give sodium salt of two (different) oxoacids of chlorine P and Q respectively. The $C{l}_2$ gas reacts with $S{O}_2$ gas, in presence of charcoal to give a product R. R reacts with white phosphorous to give a compound S. On hydrolysis, S gives an oxoacid of phosphorous T.
R, S and T, respectively are:

1. $S{O}_{2}C{l}_2,PC{l}_3$ and $H_{3}P{O}_3$
2. $S{O}_{2}C{l}_2,PC{l}_5$ and $H_{3}P{O}_4$
3. $SOC{l}_2,PC{l}_3$ and $H_{3}P{O}_2$
4. $S{O}_{2}C{l}_2,PC{l}_5$ and $H_{3}P{O}_4$

Q.

In general, Red Phosphorus is regarded to be unreactive at room temperature. Also it is commonly known that white Phosphorus is highly reactive at room temperature. What do you think will happen when Bromine is added to Red Phosphorus at room temperature?

1. None of the above

2. They react together in a violent manner producing phosphorus halides

3. They do not react at low temperatures

4. They react together to produce phosphorus halides but this reaction is kinetically very slow and takes a long time.

Q.

Water gas is

1. $\mathrm{CO}+{\mathrm{H}}_2^{}\mathrm{O}$

2. ${\mathrm{CO}}_2^{}+{\mathrm{H}}_2^{}\mathrm{O}$

3. $\mathrm{CO}+{\mathrm{H}}_2$

4. None of these

Q. Which of the following statement(s) is/are correct for $PC{l}_5$?

1. $P$ atom is $s{p}^{3}d$ - hybridized and has trigonal bipyramidal geometry
2. It acts as a Lewis acid
3. On hydrolysis it forms phosphoric acid
4. Axial $Cl$ atoms are closer to equatorial $Cl$ atoms

Q.

Phosphorus forms both trihalides $\left(P{X}_3\right)$ and pentahalides $\left(P{X}_5\right)$ where X = F Cl Br and I. True or False?

1. True

2. False

Q. Which of the following statement(s) is/are correct for $PC{l}_5$?

1. It acts as a Lewis acid
2. On hydrolysis it forms phosphoric acid
3. Axial $Cl$ atoms are closer to equatorial $Cl$ atoms
4. $P$ atom is $s{p}^{3}d$ - hybridized and has trigonal bipyramidal geometry

Q. Among the following, the number of compounds that can react with $PC{l}_5$ to give $POC{l}_3$ is:___
$O_2,C{O}_2,S{O}_2,H_{2}O,H_{2}S{O}_4,P_4{O}_{10}$.

Q.

In the reaction $PC{l}_3+S{O}_3\to POC{l}_3+S{O}_2,PC{l}_3$ acts as __ agent.

Q. The product formed in the reaction of $SOC{l}_2$ With white phosphorous is

1. $PC{l}_3$
2. $S{O}_{2}C{l}_2$
3. $SC{l}_2$
4. $POC{l}_3$