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CBSE Class 7 Chemistry Acids, Bases & Salts (Easy)
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Question 1 of 10
1. Question
Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are:
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Question 2 of 10
2. Question
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
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Question 3 of 10
3. Question
Which of the following set of substances contain acids?
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Question 4 of 10
4. Question
Which of the following is an acid-base indicator?
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Question 5 of 10
5. Question
The substances that are used to test whether a substance is acidic or basic is called
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Question 6 of 10
6. Question
Give the chemical name of Milk of magnesia
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Question 7 of 10
7. Question
Litmus paper (purple colour) in distilled water when added to an acid changes to
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Question 8 of 10
8. Question
The solutions which do not change the colour of either red or blue litmus are known as
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Question 9 of 10
9. Question
Find the natural indicator from the following
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Question 10 of 10
10. Question
Acids are
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