MEDIUM
10th ICSE
IMPORTANT
Earn 100

Give one disadvantage of oxidation in our daily life.

Important Questions on Chemical Reactions and Equations

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 27
What is the chemical composition of rust?
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 30

What is the significance of symbol 'aq'? 

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 3
A solution of potassium chloride when mixed with silver nitrate solution, an insoluble white substance is formed. Write the chemical reaction involved and also mention the type of the chemical reaction.
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 4

Identify the following is a chemical change or not with one reason. 

Souring of milk in summer.

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 4

Identify the following is a chemical change or not with one reason.

Dissolution of sugar in water. 

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 6

Identify the following change is exothermic or endothermic in nature? 

Dissolution of sodium hydroxide in water.

EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 9

Identify the type of the following reaction: 

A reaction in which a single product is formed from two or more reactants. 

EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>ASSESSMENT>Q 9

Identify the type of the following reaction: 

The reaction mixture becomes warm.