The reaction ( { P\_4 + 3NaOH + 3H\_2O \to 3NaH\_2PO\_2 + PH... | Chemistry | SolveeIt

Question

The reaction ${ P_4 + 3NaOH + 3H_2O \to 3NaH_2PO_2 + PH_3}$ is an example of

disproportionation reaction

neutralization reaction

double decomposition reaction

pyrolytic reaction

Answer

disproportionation reaction

Explanation

Solution

Given reaction,
${P4 +3NaOH + 3H2O -> 3\,NaH2PO2 +PH3}$
Oxidation state of $P$ in $P_4 = 0$
Oxidation state of $P$ in $PH_3 = -3$
Oxidation state of $P$ in
${NaH_2PO_2 = + 1}$
so, ${P^0_4 -> \overset{-3}{PH_3} +H2\overset{+1}{PO^{-}_2}}$
Hence, this reaction is an example of disproportionation reaction. It is a chemical reaction, typically a redox reaction, where a molecule is transformed into two or more dissimilar products.

Chemistry Question on Balancing a redox reaction

Solution