Water Of Crystallization, Efflorescence, Deliquescence, And Hygroscopy Jamb Chemistry Past Questions
Question 1
An efflorescent compound is a substance that?
- A. absorbs water froom the air without dissolving in it
- B. is capable of giving off coloured luminosity
- C. gives out water to the atmosphere
- D. absorbs water from the air and dissolves in it
- E. gives out its water of crystallization on heating
Question 2
The scale formation in a kinetic used for boiling water is caused by the presence in water of?
- A. calcium sulphate
- B. calcium carbonate
- C. calcium hydrogen carbonate
- D. calcium hydroxide
- E. magnesium sulphate
