1.
Washing soda is an
efflorescent substance. True.
2.
Washing soda is a
hygroscopic solid.
False. Washing soda is an efflorescent sold
substance.
3.
Copper sulphate is used to
determine percentage of glucose in the urine of a diabetic patient. True.
4.
Ferrous sulphate is used to
prepare ink. True.
5.
Crystalline ferrous
sulphate is green in colour, whereas amorphous powder is white in colour. True.
6.
Alum solution is used in
the Daniell cell.
False. Copper sulphate is used in Daniell cell.
7.
Burnt alum is used in
medicine. True
8.
Bleaching powder is used to
disinfect water. True
9.
Plaster of Paris hardens
when mixed with proper quantity of water True.
10. Bleaching powder is used for sealing the gaps in the laboratory
apparatus, where airtight arrangement is required.
False. Plaster of Paris is used for sealing the gaps in the laboratory
apparatus, where airtight arrangement is required.