$P H_{3}$ can be obtained by:

Question

Verified by Toppr

Answer 1

Phosphine is produced industrially by reaction of white phosphorous with sodium/potassium hydroxide producing sodium or potassium phosphite as a byproduct.

$3 K O H (h o t c o n c .) + P_{4} + 3 H_{2} O ⟶ 3 K H_{2} P O_{2} + P H_{3}$

The thermal decomposition of hypophorous acid to produce phosphine is phosphorous acid. This reaction takes place at a temperature of $50 ℃ - 140 ℃$

$3 H_{3} P O_{2} △ P H_{3} + 2 H_{3} P O_{3}$

Orthophosphorous acid also gives phosphine when heated

$4 H_{3} P O_{3} △ ⟶ 3 H_{3} P O_{4} + P H_{3}$

Calcium phosphide when reacted with excess of water to produce calcium hydroxide and phosphine gas.

$C a_{3} P_{2} + 6 H_{2} O ⟶ 3 C a O H_{2} (a q .) + 2 P H_{3} (g)$

Thus, all four options are correct.

Answer 2

Phosphine is produced industrially by reaction of white phosphorous with sodium/potassium hydroxide producing sodium or potassium phosphite as a byproduct.

3 K O H (h o t c o n c .) + P_{4} + 3 H_{2} O ⟶ 3 K H_{2} P O_{2} + P H_{3}

The thermal decomposition of hypophorous acid to produce phosphine is phosphorous acid. This reaction takes place at a temperature of

50 ℃ - 140 ℃

3 H_{3} P O_{2} △ P H_{3} + 2 H_{3} P O_{3}

Orthophosphorous acid also gives phosphine when heated

4 H_{3} P O_{3} △ ⟶ 3 H_{3} P O_{4} + P H_{3}

Calcium phosphide when reacted with excess of water to produce calcium hydroxide and phosphine gas.

C a_{3} P_{2} + 6 H_{2} O ⟶ 3 C a O H_{2} (a q .) + 2 P H_{3} (g)

Thus, all four options are correct.

$P H_{3}$ can be obtained by:

heating hypophosphorus acid.

heating orthophosphorus acid.

reacting white phosphorus with hot conc,NaOH.

hydrolysis of calcium phosphide.

The atomicity of phosphorus is X and the P-P-P bond angle is Y. What are X and Y?
[If answers are $2$ and $90$ , represent as 290]

In the following statements, select the correct statement :

Maximum change in oxidation number of nitrogen is ________ .

White phosphorus $(P_{4})$ has :

Revise with Concepts

Compounds of Phosphorus - Phosphine

PH3​ can be obtained by:

heating hypophosphorus acid.

heating orthophosphorus acid.

reacting white phosphorus with hot conc,NaOH.

hydrolysis of calcium phosphide.

The atomicity of phosphorus is X and the P-P-P bond angle is Y. What are X and Y? [If answers are 2 and 90, represent as 290]

In the following statements, select the correct statement :

Maximum change in oxidation number of nitrogen is ________ .

White phosphorus (P4​) has :

Revise with Concepts

Compounds of Phosphorus - Phosphine

$P H_{3}$ can be obtained by:

The atomicity of phosphorus is X and the P-P-P bond angle is Y. What are X and Y?
[If answers are $2$ and $90$ , represent as 290]

White phosphorus $(P_{4})$ has :