Chemistry
If a salt on heating does not gives water vapour, then that salt is:
- Hygroscopic
- Deliquescent
- Hydrated
- Anhydrous
Answer
Anhydrous
Reason — A salt which does not contain water of crystallisation is called an anhydrous salt. Since it has no water molecules attached to its crystals, it does not give water vapour on heating.
Hydrated salts contain water of crystallisation and give water vapour on heating. Hence, the correct answer is Anhydrous.
Related Questions
Which of the following substances can act as a dehydrating as well as a drying agent.
- Oxalic acid
- Conc. nitric acid
- Washing soda
- Conc sulphuric acid
Which of the following is a deliquescent salt ?
- CuSO4
- FeCl3
- KCl
- ZnSO4
The salt which is the cause of hardness in water:
- Sodium sulphate
- Magnesium bicarbonate
- Sodium chloride
- Calcium nitrate
Temporary hardness of water can be removed by:
- Adding sodium chloride
- Boiling
- Adding calcium carbonate
- Leaving it for a few hours.