Question

What do you observe when
(i) neutral litmus solution is added to pure water?
(ii) crystals of copper sulphate are heated?
(iii) chlorine water is exposed to sunlight?
(iv) water droplets are added to anhydrous cobalt chloride?
(v) sodium piece is added to cold water?​

Answer 1

Explanation:

1. no change
2. CuSO4----> CuO + SO2
3. when chlorine water is exposed to sunlight. the present chlorine will kill the bacteria present in the water and the remaining chlorine move out from water to air.
4. not know
5. Na+ H2O ---> very Exothermic reaction