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.
OR
Raina while doing certain reactions observed that heating of substance ‘X’ with vinegar like
smell with a substance ‘Y’ (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath
gives a sweet-smelling liquid ‘Z’ having molecular formula C4H8O2. When heated with caustic soda (NaOH), ‘Z’ gives back
the sodium salt of and the compound ‘Y’. Identify ‘X’, ‘Y’, and ‘Z’. Illustrate the changes with the help of
suitable chemical equations.
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