Absolute alcohol cannot be obtained by fractional distillation because

Justify the following statements. i. Water mixed with formic acid cannot be separated by fractional distillation. ii. o -nitrophenol is steam volatile while p-nitrophenol is not. iii. Freshly prepared FeSO_4 solution is insisted during the test for nitrogen in Lassaignes test. iv. Copper spiral is used in the apparatus for Dumas method.

Absolute Alcohol is prepared by : Vaccum distilation, Azeotropic distilation, Steam distilation, none of these

Which are the products obtained from fractional distillation of petroleum?

Write the products obtained by the distillation of coal.

The alcohol that cannot be prepared by the reduction of a ketone is

Which of the following pairs of solutions can be separated into its pure components by fractional distillation