Q.34
a) Rehmat classified the reaction between Methane and Chlorine in presence of sunlight as a substitution reaction. Support Rehmat’s view with suitable justification and illustrate the reaction with the help of a balanced chemical equation.
b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
Answer ( 1 )
b) Sodium hydroxide/ NaOH/ Caustic soda [1]
Hydrogen – ½
Uses: (any one each) [1]
Sodium hydroxide/ NaOH/ Caustic soda
– Degreasing of metals
– Preparation of soaps and detergents
– Paper making
– Artificial fibres
Hydrogen –
– Fuels
– Margarine
– Manufacture of ammonia for fertilizers