The compound that cannot act both as an oxidising and reducing agent is:

When $H_2S$ is passed through $Hg_2^{2+}$ solution,the products obtained are:

What sort of information can you draw from the following reaction?
$(CN)_{2(g)} + 2OH_{(aq)}^{-} \to CN_{(aq)}^{-} + CNO_{(aq)}^{-} + H_2O_{(l)}$

The reaction of white phosphorus with aqueous $NaOH$ gives phosphine along with another phosphorus-containing compound. The reaction type and the oxidation states of phosphorus in phosphine and the other product are respectively:

Which of the following is only a redox reaction but not a disproportionation reaction?

Which of the following reactions are disproportionation reactions?
$(A)$ $2 Cu^{+} \rightarrow Cu^{2+} + Cu$
$(B)$ $3 MnO_4^{2-} + 4 H^{+} \rightarrow 2 MnO_4^{-} + MnO_2 + 2 H_2 O$
$(C)$ $2 KMnO_4 \rightarrow K_2 MnO_4 + MnO_2 + O_2$
$(D)$ $2 MnO_4^{-} + 3 Mn^{2+} + 2 H_2 O \rightarrow 5 MnO_2 + 4 H^{+}$
Choose the correct answer from the options given below: