Copper sulphate crystals are heated strongly in a hard glass test tube. Write three observations noticed.

What do you observe : Iodine crystals are heated strongly in a test tube.

Blue copper sulphate crystals are anhydrous. (T/F)

Identify the True/False statement A few crystals of KNO_(3) are heated in a hard glass test tube and Nitrogen gas is obtained.

2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction.

When zinc nitrate crystals are strongly heated it gives:

State two relevant observation Lead nitrate crystals are heated in a hard glass test tube.

What would you observe in the following ? Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.

2g of ferrous sulphate crystals are heated in a boiling tube. (i) State the colour of ferrous sulphate crystals both before heating and after heating. (ii) Name the gases produced during heating. (iii) Write the chemical equation for the reaction.

When magnesium nitrate crystal are strongly heated it gives:

What do you observe when : Strong heating of red HgO in test tube.