EASY
10th CBSE
IMPORTANT
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What is the difference between: exothermic and endothermic reactions ?

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 10
What is the difference between combination and decomposition reactions?
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:
Barium chloride solution is mixed with a copper sulphate solution and a white precipitate is observed.
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:
On heating copper powder in the air in a china dish, the surface of copper powder turns black.
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:
Zinc metal reacts with aqueous hydrochloric acid to produce a solution of zinc chloride and hydrogen gas.
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