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10th CBSE
IMPORTANT
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Identify the product which represents the solid state in the above reaction.

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Important Questions on Chemical Reactions and Equations

EASY
10th CBSE
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Sample Paper>Q 52
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is:
EASY
10th CBSE
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Sample Paper>Q 54
Dil. HCl is added to Zn granules. How will you prove that chemical change has taken place here? Support your response with two arguments.
EASY
10th CBSE
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Sample Paper>Q 55
Rehmat classified the reaction between methane and chlorine in the presence of sunlight as a substitution reaction. Support Rehmat’s view with suitable justification and illustrate the reaction with the help of a balanced chemical equation.