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10th CBSE
IMPORTANT
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Which of the following does not involve a chemical reaction?

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Important Questions on Chemical Reactions and Equations

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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 38
You are given the solution of lead nitrate. In order to obtain a yellow precipitate, you should mix it with a solution of:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 39
An acid which can decolourise purple coloured potassium permanganate solution is:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 40
The chemical reaction between two substances is characterised by a change in colour from orange to green. These two substances are most likely to be:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 41
The chemical reaction between quicklime and water is characterised by:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 42
One of the following is an endothermic reaction. This is:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 43
Which of the following is not an endothermic reaction?
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 44
One of the following is an exothermic reaction. This is :
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Multiple Choice Questions (MCQs)>Q 45
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is known as: