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Class 10 Science Chapter Chemical Reactions and Equations - Part 2

NCERT & CBSE Based, Class 10 Science Chapter Chemical Reactions and Equations, how to balance chemical equations. types of reactions, like a campfire burning or iron rusting. Most important MCQs for p...

Class 10th
30 Questions
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Q1 • MCQ • 1 marks
Corrosion is:
Q3 • MCQ • 1 marks
Green coating on copper is:
Q4 • MCQ • 1 marks
Black coating on silver is:
Q5 • MCQ • 1 marks
Rancidity occurs due to:
Q6 • MCQ • 1 marks
Rancidity can be prevented by:
Q7 • MCQ • 1 marks
Nitrogen-filled packets prevent:
Q8 • MCQ • 1 marks
Which is not evidence of a chemical reaction?
Q9 • MCQ • 1 marks
Which reaction evolves heat?
Q10 • MCQ • 1 marks
Photosynthesis is:
Q11 • MCQ • 1 marks
Which reaction produces white ash?
Q12 • MCQ • 1 marks
Chemical equations should be:
Q13 • MCQ • 1 marks
Which law is satisfied by balancing equations?
Q14 • MCQ • 1 marks
Which of these is a chemical reaction?
Q15 • MCQ • 1 marks
Which reaction forms only one product?
Q16 • MCQ • 1 marks
Which gas supports combustion?
Q17 • MCQ • 1 marks
Which of the following is an exothermic reaction?
Q18 • MCQ • 1 marks
Which of the following is an endothermic reaction?
Q19 • MCQ • 1 marks
The reaction 2Mg + O₂ → 2MgO is:
Q20 • MCQ • 1 marks
Which reaction produces a gas?
Q21 • MCQ • 1 marks
Which metal is more reactive than copper?
Q22 • MCQ • 1 marks
The colour of copper sulphate solution is:
Q23 • MCQ • 1 marks
Iron nail dipped in CuSO₄ solution becomes coated with:
Q24 • MCQ • 1 marks
The blue colour of CuSO₄ solution changes to:
Q25 • MCQ • 1 marks
Which reaction is called a redox reaction?
Q26 • MCQ • 1 marks
CuO + H₂ → Cu + H₂O is an example of:
Q27 • MCQ • 1 marks
Hydrogen acts as:
Q28 • MCQ • 1 marks
Copper oxide acts as:
Q29 • MCQ • 1 marks
Which reaction forms a precipitate?
Q30 • MCQ • 1 marks
Silver chloride precipitate is:
Q31 • MCQ • 1 marks
Which reaction is used in black and white photography?

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