According to Dalton's atomic theory,the smallest particle in which matter can exist,is called

Two liquids $(A)$ and $(B)$ can be separated by the method of fractional distillation. The boiling point of liquid $(A)$ is less than the boiling point of liquid $(B)$. Which of the liquids do you expect to come out first in the distillate? Explain.

$A$ mixture of camphor and benzoic acid can be separated by:

Which of the following contains only one element?

Suggest a method for the separation of a mixture of methanol and acetone.

Which of the following methods is adopted to obtain gasoline from crude oil?