Activity 1.11 Ncert Science class 10
Heating of copper powder in a china dish.
Science class 10
Chemical reactions and equations model test questions
Q.1. Balance a chemical equations of Fe + H2O ———–> Fe3O4 + H2 with steps.
Answer:
Step 1: Balance atoms of elements present in highest number in the reaction.
Chemical reactions and equations MCQ
Chemical reactions and equations objective questions (MCQ) with answers.
Why is the amount of gas collected in one of the test tube in activity 1.7 double?
Activity 1.7 deals with the electrolysis of water using battery. It lyses the water into its component molecule viz. Hydrogen and oxygen.