On heating copper sulphate crystals (blue) at a very high temperature, it changes to white coloured substance `'X'`. Number of water molecules lost by one formula unit of copper sulphate during heating is

What is the formula of hydrated blue copper sulphate crystal?

Anhydrous copper sulphate (white ) turns blue with water .

What do you observe when : Blue copper sulphate crystals are heated?

State one relevant reason for Hydrated copper sulphate crystal turn white on heating

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

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.

The anhydrous salt which is used to test water as it changes colour when water is added to it. Sodium chloride , Magnesium sulphate, Zinc chloride, Copper sulphate.

A student perfomed the experiment of heating ferrous sulphate crystals in a boiling tube. He smelt fumes of a pungent gas and saw colours of ferrous sulphate disappear. (i) Write the chemical formula of the pungent gas. (ii) Why does the colour of crystal disappear ? (iii) Identify the nature of this chemical reaction.

Copper sulphate reacts with NaCN to form a cyanide complex. Write the balanced equation and find the number of NaCN molecules involved in the equation for one mole of CuSO_(4) .

A student addd few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, the added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate. In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why ?