Phosphine

Q.

When in contact with traces of oxidizing agents like $C{l}_2$, Phosphine explodes- True or False?

1. True

2. False

Q.

Phosphine is a colourless, odourless gas at room temperature - True or False?

1. True

2. False

Q.

Phosphine is

1. flammable

2. an oxidizing agent

3. highly unreactive

4. non-toxic

Q. When a small amount of solid calcium phosphide ($C{a}_3{P}_2$) is added to water, what are the most likely products formed?

1. Aqueous $C{a}^{2+}$ and $O{H}^{-}$ ions and $P{H}_3$ gas
2. Aqueous $C{a}^{2+}$ and $O{H}^{-}$ ions and $H_{3}P{O}_3$
3. Solid $Ca{H}_2$ and $H_{3}P{O}_3$
4. Solid $CaO$ and $P{H}_3$ gas

Q. Which of the following are accurate regarding the phosphine?

1. Phosphine is toxic and has a rotten-fish smell
2. Phosphine is non-toxic
3. Phosphine is a useful fertilizer
4. Phosphine is odourless

Q. $AsC{l}_3+NaB{H}_4\to P+NaCl+BC{l}_3$
Mark the correct option(s) which is/are true for compound $P$:

1. It thermally decomposes into a poisonous element and hydrogen
2. It is $s{p}^3$ hybridised with a bond angle close to that of $N{H}_3$
3. It readily oxidises in the presence of air
4. With solid $AgN{O}_3,P$ reacts to produce a yellow compound, $P$ reacts with a solution of $AgN{O}_3$ to give a black compound