Write balanced chemical equations for the following reaction: M n O 2 s + H C l a q C o n c . → H e a t M n C l 2 s + C l 2 g + H 2 O l

A balanced chemical equation is an equation for a chemical reaction in which the number of atoms for each element in the reactant side is equal to the product side. M n O 2 s + 4 H C l c o n c . → H e a t M n C l 2 a q + 2 H 2 O l + C l 2 g ↑ On heating, one mole of manganese oxide with 4 moles of concentrated HCl will give 1 mole of manganese chloride, 2 moles of water and 1 mole of chlorine gas.

E M B I B E

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 9

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10th CBSE

IMPORTANT

Earn 100

Is respiration an exothermic or endothermic reaction? Explain

Important Questions on Chemical Reactions and Equations

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10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 10

Name the products formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?

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10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 11

Explain, by giving an example, how oxidation and reduction proceed side by side ?

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10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 12

When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name the substance oxidised.

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10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 13

What happens when silver bromide is exposed to sunlight? Write a chemical equation for this reaction. Also give one use of such a reaction.

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10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 13

Iron displaces copper from copper sulphate solution, zinc displaces iron from ferrous sulphate solution and copper displaces silver from silver nitrate solution. Write the reactions involved and arrange the four metals involved in order of their reactivity.

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 14

Write balanced chemical equations for the following reaction: