HARD
10th CBSE
IMPORTANT
Earn 100

The white solid compound "A" decomposes quite rapidly on heating in the presence of a black substance "X" to form a solid compound "B" and a gas "C". When an aqueous solution of compound "B" is reacted with silver nitrate solution, then a white precipitate of silver chloride is obtained along with potassium nitrate solution. Gas "C" does not burn itself but helps burn other things.
(a) What is compound A?
(b) What is compound B?
(c) What is gas C?
(d) What do you think is the black substance X? What is its function?
(e) What is the general name of substances like X?

Important Questions on Chemical Reactions and Equations

HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Questions Based on High Order Thinking Skills (HOTS)>Q 55
Gas "A", which is the major cause of global warming, combines with hydrogen oxide "B" in nature in the presence of an environmental factor "C" and a green material "D" to form a six- carbon organic compound "E" and a gas "F". The gas "F" is necessary for breathing.
(a) What is gas A?
(b) What is the common name of B?
(c) What do you think could be C?
(d) What is material D? Where is it found?
(e) Name the organic compound E.
(f) What is the gas F? Name the natural process during which it is released.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 1
What type of reaction is represented by the digestion of food in our body?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 2
Name the various types of chemical reactions.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 3
Why does the colour of copper sulphate solution change when an iron nail is kept immersed in it?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 4
Write the balanced chemical equation for the following reaction:
Zinc+silver nitrate→Zinc nitrate + silver
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 5
Which term is used to indicate the development of unpleasant smell and taste in fat and oil-containing foods due to aerial oxidation(when they are kept exposed for a considerable time)?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 6
What is the general name of the chemicals which are added to fat and oil-containing foods to prevent the development of rancidity?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Very Short Answer Type Questions>Q 7
State an important use of decomposition reactions.