Fill in the blanks:

Fill in the blanks:

1.      The chemical formula of POP is 2CaSO­₄.H₂O.

2.      The chemical reaction during which H_2(g) is lost is termed as oxidation.

3.      Corrosion can be prevented by using anti-rust solution.

4.      When acids and alkalis react together, salt and water are formed.

The chemical reactions is which heat is liberated are called exothermic reactions.