Write one equation for decomposition reactions where energy is supplied in the form of heat, light or electricity.

(a) Write one equation each for decomposition reaction when energy is supplied in the form of : (i) heat , (ii) light. (b) Account for the following : (i) Paint is applied on iron articles. (ii) Oil and fat containing food items are flushed with nitrogen . (iii) When an iron nail kept in copper sulphate solution, blue colour of the solution fades and iron nail becomes brownish .

Write an equation for Swartz reaction.

Write the general equation for Wurtz reaction.

Decomposition reaction requires energy in the form of heat or light or electricity for breaking the reactants. Write one example for each with equation.

Write the reaction of thermal decomposition of sodium azide.

Write the Z scheme of Light reaction.