In presence of H2S, SO2 acts as :
Equation H2S+H2O2→S+2H2O Here H2O2 acts as an ___ agent.
Question 59 A non-metal A, which is the largest constituent of air, when heated with H2 in 1:3 ratio in the presence of catalyst Fe, gives a gas B. On heating with O2, it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D, which acts as a strong oxidising agent. (a) Identify A, B, C and D (b) To which group of periodic table does this non-metal belong?
Balance the following equations in basic medium by ion-electron method and oxidation number methods and identify the oxidising agent and the reducing agent.