Chemical Reactions and Equations

Class 10 Chemical Reactions and Equations Notes

Chemical Reactions and Equations – Notes Chemical Reaction:- The change in which one or more new substances with different chemical properties are formed is called a chemical reaction. Common observations during a chemical reaction are:- Change in state Change in color Change in temperature Evolution of gas Word Equation:- A chemical reaction expressed in words rather than […]

Class 10 Chemical Reactions and Equations Important Questions

Chemical Reactions and Equations Important Questions What is a balanced chemical equation? Why is it important to balance a chemical equation? Define exothermic reaction. Why respiration is considered as exothermic reaction? A solution of substance ‘X’ is used for whitewashing.i. Name the substance ‘X’ & write its formula.ii. Write the reaction of ’X’ with water. […]

Class 10 Chemical Reactions and Equations Previous Years Questions

Chemical Reactions and Equations Previous Years Questions Strong heating of ferrous sulphate leads to the formation of a brown solid and two gases. This reaction can be categorised as:-a. displacement and redoxb. decomposition and redoxc. displacement and endothermicd. decomposition and exothermic [1 mark] [CBSE 2020] What is observed after about 1 hour of adding the […]

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