Question

Explain with balanced chemical equations: 10
i. Potassium iodide is added to Copper Chloride solution
ii. Sugar is strongly heated
iii. When steam is passed over aluminium.
iv. When dilute hydrochloric acid reacts with sodium carbonate
v. Copper reacts with Aluminium chloride

Answer 1

1. 4 KI+ 2CuCl2 -----> Cu2I2+I2+4KCL

2. When sugar is heated strongly it forms black shoot along with smoke.

3. 2Al + 3H2O-----> Al2O3

4. Na2CO3 + HCl -----> NaHCO3 + NaCl