State your observations when conc. sulphuric acid is added to sugar crystals.

What will you observe when concentrated sulphuric acid is poured on (i) sugar crystals (ii) copper sulphate crystals ?

State your observations when hydrochloric acid is added to zinc nitrate solution

State your observation when (i) nitric acid is added to saw dust (ii) conc . Nitric acid is heated a in absence of copper (b) in presence of copper.

State your observation when: Dilute hydrochloric acid is added to MnO_2

State your observation when: Dilute hydrochloric acid is added to copper carbonate.

Write your observations when dilute sulphuric acid is added to the following: A metal (zinc).

Write your observations when dilute sulphuric acid is added to the following: A metal sulphite (potassium sulphite)

Write your observations when dilute sulphuric acid is added to the following: A metal carbonate (sodium carbonate).

Write your observations when dilute sulphuric acid is added to the following: A metal sulphide (sodium sulphide).

State your observation when: Dilute hydrochloric acid is added to lead nitrate and the mixture is heated.