MEDIUM
10th CBSE
IMPORTANT
Earn 100

Write a balanced chemical equation and identify the type of chemical reaction taking place when:
Zinc metal reacts with aqueous hydrochloric acid to produce a solution of zinc chloride and hydrogen gas.

Important Questions on Chemical Reactions and Equations

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 11
Write a balanced chemical equation and identify the type of chemical reaction taking place when:
Iron nails when left dipped in blue copper sulphate solution become brownish in colour and blue colour of copper sulphate fades away.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 11
Write a balanced chemical equation and identify the type of chemical reaction taking place when:
Quick lime reacts vigorously with water releasing a large amount of heat.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 12
Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen during electrolysis of water is
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 13
Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?
(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 14
Rahul took some zinc granules in a test tube and added dilute HCl to it. He observed that the colour of zinc granules changed to.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 15
Carbon dioxide turns the lime water milky due to the formation of
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 16

Solid calcium oxide was taken in a container and water was added slowly to it.
State the two observations made in the experiment.
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EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 1 - Chemical Reactions and Equations>TEST YOURSELF>Q 16

Solid calcium oxide was taken in a container and water was added slowly to it.

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Write the name and the chemical formula of the product formed.