Question

Write a balanced chemical equation for each of the following : (10)
1. Reaction of carbon and conc. nitric acid.
2. Reaction of excess ammonia with chlorine.
3. Reaction of sodium carbonate with dilute Hydrochloric acid
4. Sulphur react with cone H2SO4.

5. Copper react with dilute nitric acid

Answer 1

1) C +4 HNO3 → CO2 + 4NO2 + 2H2O

2) 8NH3+ 3Cl2 → 6NH4Cl+ N2

3) Na2CO3 + 2 HCl → 2 NaCl + H2CO3

4) S + 2H2SO4→ 2SO2+H2O

5) 3Cu + 8HNO3​(dil.)→ 3Cu(NO3​)2​+ 4H2​O+ 2NO