Q.1. Moist ethylene can be dried by passing it through concentrated sulphuric acid. (1982 - 1 Mark)
Sol. False : Ethylene reacts with sulphuric acid to form ethyl hydrogen sulphate. It can be dried by passing it through phosphorus pentoxide.
Q.2. Photobromination of 2-methylpropane gives a mixture of 1-bromo-2-methylpropane and 2-bromo-2-methylpropane in the ratio of 9: 1. (1993 - 1 Mark)
Sol. False : Bromine is less reactive, hence it is more selective and thus 3º hydrogen will be removed more easily than the 1º hydrogen leading to 2-bromo-2-methylpropane as the main product.