The number of water of crystallisation in hypo are____.

Which of the following has more number of water of crystallisation

The number of molecules of water of crystallisation present in washing soda crystals is:

Water of crystallisation is not present in

5 g of crystalline salt rendered lost of 1.8 g of water on heating. The molecular weight of the anhydrous salts is 160. The number of water molecules of crystallisation is