Thermite is a mixture of

Crude sodium chloride obtained by crystallisation of brine solution does not contain

Explain the preparation of sodium carbonate by the Solvay process with chemical reactions.

Sodium is heated in air at $300^{\circ} C$ to form $X$. $X$ absorbs $CO_2$ and forms $Na_2CO_3$ and $Y$. Which of the following is $Y$?

Which one on reaction with $NaOH$ solution gives inflammable gas?

The nitrate of which metal leaves a metallic globule upon strong heating?