Question

Write chemical equation for the chemical reaction which occurs when the aqueous solutions of barium chloride and sodium sulphate react together. Write the symbols of the ions present in the compound precipitated in the reaction.

Which of the following is not a thermal decomposition reaction?

When acid present in tamarind is mixed with X, mixture Y is formed. When Y is mixed in the kneaded flour dough and heated, the cake formed becomes soft and spongy. X is prepared from common salt and is also used for faster cooking.

A chemical reaction in which exchange of ions occurs between the reactants, is known as :