Name a suitable technique of separation of the components from a mixture of calcium sulphate and camphor.

$A$ mixture of sand and iodine can be separated by

Which of the following substances undergoes sublimation?

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.

Write down the properties of matter.

$A$ mixture of $ZnCl_2$ and $PbCl_2$ can be separated by