Lakhmir Singh and Manjit Kaur Solutions for Chapter: Chemical Reactions And Equations, Exercise 7: Short Answer Type Questions

Give one example of an oxidation-reduction reaction, which is also a displacement reaction.

What do you mean by a precipitation reaction? Explain giving an example.

When the copper powder is heated strongly in air, it forms copper oxide.

Write a balanced chemical equation for this reaction.

Name (i) The substance oxidized, and (ii) The substance reduced.

When a magnesium ribbon is heated, it burns in air to form magnesium oxide.

Write a balanced chemical equation for this.

Name (i) substance oxidised and (ii) substance reduced.

Define the following in terms of gain or loss of hydrogen with one example each:

(i) oxidation (ii) reduction

Express the following facts in the form of a balanced chemical equation:
When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed.

Write a balanced chemical equation with state symbols for the following reaction:
Barium chloride solution reacts with sodium sulphate solution to give insoluble barium sulphate and a solution of sodium chloride.

What happens when a zinc strip is dipped into a copper sulphate solution? Name the type of reaction involved.