White $P_4$ reacts with caustic soda,the products are $PH_3$ and $NaH_2PO_2$. This reaction is an example of

Assign $A$,$B$,$C$,$D$ from given type of reaction.
$A$ for precipitate formation reaction.
$B$ for precipitate dissolution reaction.
$C$ for precipitate exchange reaction.
$D$ for no reaction.
$P_4 + 3NaOH + 3H_2O \longrightarrow PH_3 + 3NaH_2PO_2$
Identify the correct category for the given reaction.

Manganese $(VI)$ has the ability to disproportionate in an acidic solution. The difference in oxidation states of the two ions it forms in an acidic solution is $...... .$

Which of the following best describes the behavior of bromine in the reaction given below?
$H_2O + Br_2 \to HOBr + HBr$

Which of the following species can function both as an oxidizing as well as a reducing agent?

In the following reaction $P_4 + 3NaOH + 3H_2O \to PH_3 + 3NaH_2PO_2$,what happens to phosphorus?