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Class 7 Exam  >  Class 7 Tests  >  Test: Acids, Bases & Salts - Class 7 MCQ

Test: Acids, Bases & Salts - Class 7 MCQ


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20 Questions MCQ Test - Test: Acids, Bases & Salts

Test: Acids, Bases & Salts for Class 7 2024 is part of Class 7 preparation. The Test: Acids, Bases & Salts questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Acids, Bases & Salts MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Acids, Bases & Salts below.
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Test: Acids, Bases & Salts - Question 1
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Which of the following is an acidic substance?

Detailed Solution for Test: Acids, Bases & Salts - Question 1

Vinegar is an acidic substance due to the presence of acetic acid.

Test: Acids, Bases & Salts - Question 2
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Which acid is used in car batteries?

Detailed Solution for Test: Acids, Bases & Salts - Question 2

Sulphuric acid is commonly used in car batteries as it is a strong acid and can provide high energy.

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Test: Acids, Bases & Salts - Question 3
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Which of the following is a basic substance?

Detailed Solution for Test: Acids, Bases & Salts - Question 3

Ammonia is a basic substance due to the presence of ammonia gas.

Test: Acids, Bases & Salts - Question 4
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Which substance is used as an indicator for acidic substances?
Detailed Solution for Test: Acids, Bases & Salts - Question 4

Litmus is a natural dye that changes color in the presence of acidic or basic substances.

Test: Acids, Bases & Salts - Question 5
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Which of the following is a neutral substance?
Detailed Solution for Test: Acids, Bases & Salts - Question 5

Water is a neutral substance as it has a pH of 7 and does not show any acidic or basic properties.

Test: Acids, Bases & Salts - Question 6
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Which of the following is a salt?
Detailed Solution for Test: Acids, Bases & Salts - Question 6

Sodium chloride is a salt that is commonly used in cooking and food preservation.

Test: Acids, Bases & Salts - Question 7
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Which acid is found in citrus fruits?
Detailed Solution for Test: Acids, Bases & Salts - Question 7

Citric acid is a weak organic acid that is found in citrus fruits such as lemons and oranges.

Test: Acids, Bases & Salts - Question 8
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Which of the following is an example of a strong acid?
Detailed Solution for Test: Acids, Bases & Salts - Question 8

Hydrochloric acid is a strong acid that is commonly used in industrial processes and laboratory experiments.

Test: Acids, Bases & Salts - Question 9
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Which base is commonly used in cleaning products?
Detailed Solution for Test: Acids, Bases & Salts - Question 9

Sodium hydroxide is a strong base that is commonly used in cleaning products such as drain cleaners and oven cleaners.

Test: Acids, Bases & Salts - Question 10
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Which acid is commonly used as a preservative in food?
Detailed Solution for Test: Acids, Bases & Salts - Question 10

Acetic acid is commonly used as a preservative in food products such as pickles and sauces.

Test: Acids, Bases & Salts - Question 11
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Which of the following is a natural indicator?
Detailed Solution for Test: Acids, Bases & Salts - Question 11

Litmus is a natural dye that is used as an indicator for acidic and basic substances.

Test: Acids, Bases & Salts - Question 12
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Which base is found in antacids?
Detailed Solution for Test: Acids, Bases & Salts - Question 12

Magnesium hydroxide is commonly used in antacids as it can neutralize excess stomach acid.

Test: Acids, Bases & Salts - Question 13
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Which of the following is a weak acid?
Detailed Solution for Test: Acids, Bases & Salts - Question 13

Acetic acid is a weak acid that is found in vinegar and can be used for cooking and preservation.

Test: Acids, Bases & Salts - Question 14
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Which of the following is a strong base?
Detailed Solution for Test: Acids, Bases & Salts - Question 14

Sodium hydroxide is a strong base that is commonly used in cleaning products and industrial processes.

Test: Acids, Bases & Salts - Question 15
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Which acid is commonly used in the manufacture of fertilizers?
Detailed Solution for Test: Acids, Bases & Salts - Question 15

Nitric acid is commonly used in the manufacture of fertilizers as it can provide essential nutrients to plants.

Test: Acids, Bases & Salts - Question 16
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Which of the following is a basic indicator?
Detailed Solution for Test: Acids, Bases & Salts - Question 16

Methyl orange is a synthetic indicator that changes color in the presence of basic substances.

Test: Acids, Bases & Salts - Question 17
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Which base is commonly used in the production of soap?
Detailed Solution for Test: Acids, Bases & Salts - Question 17

Sodium hydroxide is commonly used in the production of soap as it can react with fats and oils to form soap.

Test: Acids, Bases & Salts - Question 18
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Which acid is commonly found in milk?
Detailed Solution for Test: Acids, Bases & Salts - Question 18

Lactic acid is commonly found in milk and other dairy products and is responsible for their sour taste.

Test: Acids, Bases & Salts - Question 19
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Which of the following is a neutralization reaction?
Detailed Solution for Test: Acids, Bases & Salts - Question 19

This is a neutralization reaction as the acid (HCl) and base (NaOH) react to form a salt (NaCl) and water (H2O).

Test: Acids, Bases & Salts - Question 20
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Which salt is commonly used in the production of glass?
Detailed Solution for Test: Acids, Bases & Salts - Question 20

Sodium carbonate is commonly used in the production of glass as it can lower the melting point of glass and make it easier to work with.

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