Chemistry
Give one word or a phrase for the statement :
The property by which certain hydrated salts, when left exposed to the atmosphere, lose their water of crystallization and crumble into powder.
Related Questions
Choose the correct answer from the options —
(i) To increase the pH value of a neutral solution, we should add :
- An acid
- An acid salt
- An alkali
- A salt
(ii) Anhydrous iron [III] chloride is prepared by:
- Direct combination
- Simple displacement
- Decomposition
- Neutralization
Write a balanced chemical equation for the preparation of each of the following salts:
(i) Copper carbonate
(ii) Ammonium sulphate crystals.
State one relevant observation for the following :
Anhydrous calcium chloride is exposed to air for some time.Fill in the blank with the correct choice given in the bracket —
The salt prepared by the method of direct combination is …………… [iron [II] chloride / iron [III] chloride]