• Acids, Bases and Salts
Back
0

Acids, Bases and Salts

Description: Acids Bases and Salts
Number of Questions: 21
Created by:
Tags: Acids Bases and Salts Physical Characteristics of Acids and Bases Acids, Bases and Salts Chemical Reactions of Acids and Bases Salts and their Properties Salts and their Properties
Start the Quiz
Attempted 0/21 Correct 0 Score 0
‹
›

Which of the following statements is/are false?

a. An alkali turns red litmus to blue. b. Methyl orange indicator gives yellow colour in basic solution. c. Phenolphthalein is pink in colour in an acid solution.

  1. Only a

  2. Both a and b

  3. Only b

  4. Both b and c

  5. Only c

Show answer
Correct Option: E
Explanation:

This is the correct option as this statement is false. Phenolphthalein is colourless in an acid solution.

_______________ is used in the manufacture of plastics, paints and dyes.

  1. Sulphuric acid

  2. Hydrochloric acid

  3. Acetic acid

  4. Tartaric acid

  5. Carbonic acid

Show answer
Correct Option: A
Explanation:

This is the correct option. Sulphuric acid is used in the manufacture of plastics, paints and dyes.

Weak acids have low electrical conductivity. Which of the following is a weak acid?

  1. Sulphurous acid

  2. Sulphuric acid

  3. Hydrochloric acid

  4. Nitric acid

  5. None of these

Show answer
Correct Option: A
Explanation:

This is the correct option. Sulphurous acid is a weak acid.

Acids are stored in containers made of glass and ceramics because containers made of glass and ceramics

  1. are not attacked by bases

  2. are not attacked by acids

  3. do not corrode

  4. protects acids from moisture

  5. are very durable

Show answer
Correct Option: B
Explanation:

This is the correct option. Acids are stored in containers made of glass and ceramics because containers made of glass and ceramics are not attacked by acids.

Which of the following acids is used for removing oxide film from steel objects?

  1. Sulphuric acid

  2. Hydrochloric acid

  3. Acetic acid

  4. Nitric acid

  5. Carbonic acid

Show answer
Correct Option: B
Explanation:

This is the correct option. Hydrochloric acid is used for removing oxide film from steel objects.

Which of the following is not a property of a base?

  1. Bases have bitter taste.

  2. Bases feel soapy to touch.

  3. Bases turn red litmus to blue.

  4. Bases react with some metals to form hydrogen gas.

  5. Bases react with metal oxides to form salt and water.

Show answer
Correct Option: E
Explanation:

This is the correct option as this is not a property of a base. Bases react with non-metal oxides to form salt and water.

Egg shells are made up of which of the following compounds?

  1. Sodium chloride

  2. Sodium carbonate

  3. Sodium hydroxide

  4. Calcium carbonate

  5. Calcium hydroxide

Show answer
Correct Option: D
Explanation:

This is the correct option. Egg shells are made up of calcium carbonate.

Most of the bases do not dissolve in water, but some do. Which of the following bases dissolve in water?

  1. Na2CO3

  2. NaHCO3

  3. Mg(OH)2

  4. CaO

  5. CaCO3

Show answer
Correct Option: C
Explanation:

This is the correct option. Mg(OH)2 dissolves in water.

Which of the following solutions will have a pH of exactly 7?

  1. Hydrochloric acid

  2. Sodium chloride

  3. Magnesium hydroxide

  4. Acetic acid

  5. Sodium hydroxide

Show answer
Correct Option: B
Explanation:

This is the correct option. Sodium chloride has a pH of exactly 7.

Which of the following acid is naturally produced in a human's stomach?

  1. Sulphuric acid

  2. Tartaric acid

  3. Citric acid

  4. Hydrochloric acid

  5. Formic acid

Show answer
Correct Option: D
Explanation:

This is the correct option. Hydrochloric acid is naturally produced in a human's stomach. It aids in the digestion of food.

Which of the following statements is/are false?

a. Solutions having pH lesser than 7 are acidic in nature and will turn methyl orange indicator red. b. Both acidic and basic solutions contain hydrogen ions. c. Substances having pH of more than 7 will turn phenolphthalein indicator blue.

  1. Only a

  2. Both a and b

  3. Only b

  4. Both b and c

  5. Only c

Show answer
Correct Option: E
Explanation:

This is the correct option as this statement is false. Substances having pH of more than 7 will turn phenolphthalein indicator pink.

If the soil in a field is having low pH, then it can be treated with which of the following?

a. Calcium oxide b. Calcium carbonate c. Sodium chloride

  1. Only a

  2. Both a and b

  3. Only c

  4. Both a and c

  5. Both b and c

Show answer
Correct Option: B
Explanation:

This is the correct option. Calcium oxide and calcium carbonate are both bases and hence, they react with the excess acid present in the soil and reduce its acidity.

Which of the following salts will give a neutral solution?

  1. Ammonium chloride

  2. Potassium sulphate

  3. Ammonium sulphate

  4. Sodium carbonate

  5. Sodium acetate

Show answer
Correct Option: B
Explanation:

This is the correct option. Potassium sulphate will give a neutral solution because it is formed from a strong acid (sulphuric acid) and a strong base (potassium hydroxide).

Sodium hydroxide is obtained by the electrolysis of sodium chloride solution. Which of the following is not a use of sodium hydroxide?

  1. Sodium hydroxide is used for making soaps and detergents.

  2. Sodium hydroxide is used for making artificial textile fibre.

  3. Sodium hydroxide is used in the manufacturing of paper.

  4. Sodium hydroxide is used in purifying bauxite ore.

  5. Sodium hydroxide is used for making solvents for drycleaning.

Show answer
Correct Option: E
Explanation:

This is the correct option as this is not a use of sodium hydroxide. Sodium hydroxide is not used for making solvents for drycleaning.

Which of the following is used to remove the permanent hardness of water?

  1. Sodium carbonate

  2. Sodium hydroxide

  3. Sodium hydrogencarbonate

  4. Sodium chloride

  5. Sodium acetate

Show answer
Correct Option: A
Explanation:

This is the correct option. Sodium carbonate is used to remove the permanent hardness of water.

Which of the following is also called as the chloride of lime?

  1. Baking soda

  2. Baking powder

  3. Bleaching powder

  4. Plaster of Paris

  5. Caustic soda

Show answer
Correct Option: C
Explanation:

This is the correct option. Bleaching powder is also called as the chloride of lime.

Organic acids are the naturally occurring acids. Which of the following is not an organic acid?

  1. Acetic acid

  2. Citric acid

  3. Lactic acid

  4. Tartaric acid

  5. Nitric acid

Show answer
Correct Option: E
Explanation:

This is the correct option. Nitric acid is not an organic acid. It is a mineral acid.

Match the following:

 
Salts Formula
a. Calcium chloride 1. CaCO3
b. Calcium sulphate 2. CaCl2
c. Calcium carbonate 3. CaSO4

  1. a - 1, b - 3, c - 2

  2. a - 2, b - 3, c - 1

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 2, c - 3

  5. a - 2, b - 1, c - 3

Show answer
Correct Option: B
Explanation:

This is the correct option. The formula of calcium chloride is CaCl2. The formula of calcium sulphate is CaSO4. The formula of calcium carbonate is CaCO3.

Which of the following is used in chemistry laboratories for sealing air-gaps in apparatus where air-tight arrangement is required?

  1. Plaster of Paris

  2. Bleaching powder

  3. Baking soda

  4. Washing soda

  5. Caustic soda

Show answer
Correct Option: A
Explanation:

This is the correct option. Plaster of Paris is used in chemistry laboratories for sealing air-gaps in apparatus where air-tight arrangement is required.

The presence of which of the following ions gives an acid solution its acidic properties?

  1. Sulphur ions

  2. Potassium ions

  3. Hydrogen ions

  4. Copper ions

  5. Magnesium ions

Show answer
Correct Option: C
Explanation:

This is the correct option. The presence of hydrogen ions gives an acid solution its acidic properties. It is because most of the acids react with metals to form salts and evolve hydrogen gas. 

Match the following: Acids|Sources| |a. Acetic acid|1. Orange| |b. Citric acid|2. Curd| |c. Lactic acid|3. Vinegar|

  1. a - 3, b - 1, c - 2

  2. a - 3, b - 2, c - 1

  3. a - 1, b - 2, c - 3

  4. a - 1, b - 3, c - 2

  5. a - 2, b - 1, c - 3

Show answer
Correct Option: A
Explanation:

This is the correct option. The source of acetic acid is vinegar. The source of citric acid is orange. The source of lactic acid is curd.

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions