Heating white phosphorus with conc. NaOH solution gives mainly - Vidyadip

MCQ

Heating white phosphorus with conc. $NaOH$ solution gives mainly

A
$Na _{3} P$ and $H _{2} O$
B
$H _{3} PO$ and $NaH$
C
$P ( OH )_{3}$ and $NaH _{2} PO _{4}$
✓
$PH _{3}$ and $NaH _{2} PO _{2}$

✓

Answer

Correct option: D.

$PH _{3}$ and $NaH _{2} PO _{2}$

d
$P _{4}+3 NaOH +3 H _{2} O \rightarrow 3 NaH _{2} PO _{2}+ PH _{3}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

$(\Delta H - \Delta U)$ for the formation of carbon monoxide $(CO)$ from its elements at $298\, K$ is ............. $\mathrm{J\,mol}^{-1}$ $(R= 8.314\,J\,K^{-1}\, mol^{-1})$

$LPG$ is a mixture of

Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as

The amphoteric oxide among $\mathrm{V}_{2} \mathrm{O}_{3}, \mathrm{~V}_{2} \mathrm{O}_{4}$ and $\mathrm{V}_{2} \mathrm{O}_{5}$ upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is :

Which of the following is azo- group

Calculate $\Lambda _{HOAc}^\infty $ using appropriate molar conductances of the electrolytes listed above at infinite dilution in ${H_2}O$ at $25\,^o\, C$

Electrolyte :	$KCl$	$KNO_3$	$HCl$	$NaOAc$	$NaCl$
$\Lambda ^\infty (Scm^2mol^{-1}) $:	$149.9$	$145.0$	$426.2$	$91.0$	$126.5$

Given that $E_{{K^ + }/K}^o\, = \, - \,2.93\,V\,;$

$E_{F{e^{2 + }}/Fe}^o\, = \, - \,0.44\,\,V\,;\,\,E_{Z{n^{2 + }}/Zn}^o\, = \, - \,0.76\,\,V\,;\,$

$E_{C{u^{ + 2}}/Cu}^o\, = \,0.34\,\,V$

Based on this data, which of the following is the strongest reducing agent ?

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.

Heterolytic bond dissociation energy of alkyl halides follows the sequence

An amount of solid $N{H_4}HS$ is placed in a flask already containing ammonia gas at a certain temperature and $0.50$ $atm.$ pressure. Ammonium hydrogen sulphide decomposes to yield $N{H_3}$ and ${H_2}S$ gases in the flask. When the decomposition reaction reaches equilibrium, the total pressure in the flask rises to $0.84$ $atm$. The equilibrium constant for $N{H_4}HS$ decomposition at this temperature is