HARD
10th CBSE
IMPORTANT
Earn 100

What is the colour of ferrous sulphate crystals? How does this colour change after heating?
 

Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 29
Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 30
What is a decomposition reaction? Give an example of a decomposition reaction. Describe an activity to illustrate such a reaction by heating.
HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 31
Zinc oxide reacts with carbon, on heating, to form zinc metal and carbon monoxide.
Write a balanced chemical equation for this reaction. Name (i) oxidising agent, and (ii) reducing agent, in this reaction.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 32
Give one example of an oxidation-reduction reaction, which is also a combination reaction
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 32
Give one example of an oxidation-reduction reaction, which is also a displacement reaction.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 33
What is the difference between displacement and double displacement reactions? Write equations for these reactions.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 33
What do you mean by a precipitation reaction? Explain giving an example.
HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 34
 Explain the following in terms of gain or loss of oxygen with one example each:
(i) oxidation (ii) reduction