Classify the nitrogen as element and compound.

Classify the oxygen as element and compound.

Classify the iodine as element and compound.

Classify the water as element and compound.

Classify the mercury as element and compound.

Classify the helium gas as element and compound.

Classify the table salt as element and compound.

Classify the following as eleemnt and compound. (i) mercuric oxide (ii) helium gas (iii) water (iv) table salt (v) iodine (vi) mercury (vii) oxygen (viii) nitrogen

Classify the mercuric oxide as element and compound.

Answer the following question : Classify the following into elements, compounds and mixtures : Sugar, sodium, nitrogen, sodium carbonate, air, sulphuric acid, mercury, stainless steel, cement, potassium dichromate.

Classify the fuels.