Question

Difference between metals and non-metal on the basis of their reaction with air. Also mention the type s of oxides formed in each case.

Answer 1

Metal -

1. Metal + Oxygen = Metallic oxides ( basic )
Eg. Mg + O = 2MgO

2. Metal + water = Metallic hydroxides + Hydrogen
Eg. Na + water = NaOH + Hydrogen

3. Metal + acids = Salt + Hydrogen
Eg. Na + HCl = NaCl + Hydrogen

4. Metal + Bases = Salt + Hydrogen
Eg. Al + 3NaOH = Na3AlO3 + 1.5H2



Non metals -

1. Non metals + Oxygen = Non metallic oxides ( acidic )
Eg. C + O2 = CO2

2. Non metals + Water = No reaction

3. Non metals + Acids = Non metal oxidixzes
Eg. HNO3 + P = H3PO4 + NO + H2O

4. Non metals + Bases = Salt + Water
Eg. HCl + NaOH = NaCl + H2O