Acids, Bases and Salts - 3
Test your knowledge of acids, bases, and salts including their properties, reactions, and common applications in chemistry.
Questions
Which of the following substances is used to disinfect drinking water?
- Hydrogen
- Sodium hydroxide
- Chlorine
- Brine
Which of the following is the molecular formula of Plaster of Paris?
- CaSO4.2H2O
- CaSO4.1/2H2O
- CuSO4.5H2O
- CuSO4
Which of the following statements about chlor-alkali process is not correct?
- Oxidation of chlorine takes place at anode.
- It is a process for the electrolysis of sodium chloride.
- Sodium ions of salt combine with hydrogen ions of water.
- Hydrogen ions gain electrons at cathode.
Which of the following is not a hydrated salt?
- CuSO4.5H2O
- Na2CO3.10H2O
- CaSO4.2H2O
- None of these
Basic salts are formed by the neutralisation of
- a strong acid and a strong base
- a strong acid and a weak base
- a weak acid and a weak base
- a strong base and a weak acid
The chemical name of baking soda is
- sodium carbonate
- sodium hydrogen carbonate
- calcium carbonate
- sodium hydroxide
What is the chemical nature of soaps?
- Neutral
- Highly acidic
- Mildly acidic
- Basic
Which of the following is TRUE for basic salts?
(i) Formed by partial replacement of hydroxyl groups
(ii) Formed by complete replacement of hydroxyl groups
(iii) Formed by incomplete neutralisation of a base
(iv) Formed by complete neutralisation of a base
- (i) or (iv)
- (i) or (iii)
- (ii) or (iv)
- (ii) or (iii)
Which of the following chemicals is used to make artificial fibres?
- NaOH
- NaOCl
- CaOCl2
- None of these
Sodium bicarbonate is also known as
- washing soda
- baking soda
- bleaching powder
- lime soda