Name the reaction which takes place when a slow neutron beam strikes `"_92^235U` nuclei. Write the nuclear reaction involved?

When does reduction of substance take place in a reaction?

What happens when PCl_5 is heated . Write the reactions involved.

What happens when H_3PO_3 is heated? Write the reactions involved .

When does oxidation of substance take place in a reaction?

What happens when an aqueous solution of sodium sulphate reacts with an aqueous solution of barium chloride? State the physical conditions of reactants in which the reaction between them will not take place. Write the balanced chemical equation for the reaction and name the type of reaction.

Name the gas produced when Magnesium carbonate reacts with hydrochloric acid. Write their chemical reactions.