JEE Main 2022 · 27 Jun · Shift 1 · Chemistry Q70

ChemistrySingle correct+4 / -1Question 70 of 90

Heating white phosphorus with conc. NaOH solution gives mainly :

\mathrm{Na_3P}

and

\mathrm{H_2O}

\mathrm{H_3PO}

and NaH

\mathrm{P(OH)_3}

and

\mathrm{NaH_2PO_4}

\mathrm{PH_3}

and

\mathrm{NaH_2PO_2}

Answer and worked solution

Official answer: D

Disproportionation. $\mathrm{P_4+3NaOH+3H_2O\rightarrow PH_3+3NaH_2PO_2}$ .

(D)

Topics:Group 15 Oxidation number

JEE Main 2022 · 27 Jun · Shift 1, Chemistry question 70