Acids, Bases and Salts - 3 Online Test

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Acids, Bases and Salts - 3

Description: Acids, Bases and Salts - 3
Number of Questions: 10
Created by: Ankita Patil
Tags: Acids Bases and Salts - 3 Acids and Bases

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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

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Acids, Bases and Salts - 3

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