EASY
10th CBSE
IMPORTANT
Earn 100

Why photosynthesis is considered as an endothermic reaction? Explain.

Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 9
Give the word equation for the following and then balance the equation:
Sodium carbonate combines with hydrogen chloride acid to form sodium chloride, water and carbon dioxide.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 9
Give the word equation for the following and then balance the equation:
Zinc metal reacts with hydrochloric acid to produce a solution of zinc chloride and hydrogen gas.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 10
Define the terms oxidation and reduction in terms of gain or loss of hydrogen with one example each.
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 11
What are the various types of chemical reactions? Give an example for each.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 12
What happens when zinc granules react with dilute sulphuric acid?
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 12
How would you say that a chemical reaction has taken place? Give an example.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 13
Define a precipitate.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 13
What are the two ways of forming the precipitate?