Chemistry
Which of the following will produce water vapour on heating?
- Potassium chloride crystals
- Sodium chloride crystals
- Sodium nitrate crystals
- Washing soda crystals
Water
6 Likes
Answer
Washing soda crystals
Reason — Washing soda crystals (Na2CO3.10H2O) contain water of crystallisation. On heating, it is given off as water vapour.
Answered By
4 Likes
Related Questions
The double covalent molecule is :
- Oxygen
- Ammonia
- Sodium chloride
- Hydrogen sulphide
According to modern periodic law, the properties of elements are a periodic function of their:
- Atomic volume
- Atomic number
- Atomic weight
- Mass number
The gas which produces a black precipitate when passed through lead acetate solution is:
- Hydrogen sulphide
- Ammonia
- Sulphur dioxide
- Hydrogen chloride
When acid reacts with base to form salt and water only, the reaction is known as:
- Displacement
- Neutralisation
- Decomposition
- Redox