Distinguish between `CO_2` and `SO_2` (by using a suitable reagent)

Distinguish on the basis of heating in dry test tube CO_2 and SO_2 (by using a suitable reagent)

Distinguish between Mach 1 and Mach 2.

Distinguish between Aniline and Benzyl amine by suitable chemical test.

Distinguish between hcp and ccp lattices with suitable examples.

Distinguish between the pairs of compounds using the reagent given in the bracket. Ferrous sulphate solution and ferric sulphate solution. (using sodium hydroxide solution)

Distinguish between the pairs of compounds using a reagent as a chemical test: Magnesium chloride and Magnesium nitrate solution.

Distinguish between 1- Propanol and 2 -Methyl- 2 -propanol by suitable chemical test.

H_(2)S and SO_(2) can be distinguished by

Distinguish between primary and secondary cells used as batteries.

How would you distinguish between Zn^2+)andPb^(2+) using ammonium hydroxide solution.