MEDIUM
10th ICSE
IMPORTANT
Earn 100

Why is combustion reaction an oxidation reaction? 

Important Questions on Chemical Reactions and Equations

MEDIUM
10th ICSE
IMPORTANT

What is the difference between word equation and symbolic equation? Out of word equation and symbolic equation, which one is more informative? 

MEDIUM
10th ICSE
IMPORTANT

What does the skeletal chemical equation represent? Using the equation for electrolytic decomposition of water differentiate between a skeletal chemical equation and a balanced chemical equation. 

MEDIUM
10th ICSE
IMPORTANT
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

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

Souring of milk in summer.

EASY
10th ICSE
IMPORTANT

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

Evaporation of water.

MEDIUM
10th ICSE
IMPORTANT

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

Dissolution of sugar in water. 

MEDIUM
10th ICSE
IMPORTANT
Write the four changes which help us to determine whether a chemical reaction has taken place or not. 
EASY
10th ICSE
IMPORTANT

Identify the following change is exothermic or endothermic in nature? 

Dilution of sulphuric acid.