MEDIUM
10th Madhya Pradesh Board
IMPORTANT
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Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.

Important Questions on Chemical Reactions and Equations

MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 12
Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 13
What is the difference between displacement and double displacement reactions? Write equations for these reactions.
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 14
In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 15
What do you mean by a precipitation reaction? Explain by giving examples.
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 16
Explain the oxidation in terms of gain or loss of oxygen with two examples.
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 16
Explain reduction in terms of gain or loss of oxygen with two examples.
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 17
A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 1 - Chemical Reactions and Equations>EXERCISES>Q 18
Why do we apply paint on iron articles?