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Class 10 Science Chapter Chemical Reactions and Equations - Part 3

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
Which gas is released during decomposition of limestone?
Q3 • MCQ • 1 marks
The formula of quicklime is:
Q4 • MCQ • 1 marks
Slaked lime is:
Q5 • MCQ • 1 marks
CaO + H₂O → Ca(OH)₂ is:
Q6 • MCQ • 1 marks
Which of these is NOT a chemical reaction?
Q7 • MCQ • 1 marks
Which gas is produced during respiration?
Q8 • MCQ • 1 marks
Which process releases energy?
Q9 • MCQ • 1 marks
The law of conservation of mass was given by:
Q10 • MCQ • 1 marks
Which is the correct balanced equation?
Q11 • MCQ • 1 marks
Which metal is least likely to rust?
Q12 • MCQ • 1 marks
Corrosion of iron is commonly known as:
Q13 • MCQ • 1 marks
Which coating prevents rusting?
Q14 • MCQ • 1 marks
Galvanization means coating iron with:
Q15 • MCQ • 1 marks
Which metal develops a green coating?
Q16 • MCQ • 1 marks
Which metal develops a black coating?
Q17 • MCQ • 1 marks
Rancidity mainly affects:
Q18 • MCQ • 1 marks
Antioxidants help to:
Q19 • MCQ • 1 marks
Nitrogen gas is filled in chips packets because it:
Q20 • MCQ • 1 marks
Which reaction absorbs sunlight?
Q21 • MCQ • 1 marks
Which reaction releases light?
Q22 • MCQ • 1 marks
A chemical equation should contain:
Q23 • MCQ • 1 marks
The symbol (aq) represents:
Q24 • MCQ • 1 marks
The symbol (g) means:
Q25 • MCQ • 1 marks
The symbol (l) stands for:
Q26 • MCQ • 1 marks
The symbol (s) stands for:
Q27 • MCQ • 1 marks
Which state symbol is used for water?
Q28 • MCQ • 1 marks
Which of the following indicates evolution of gas?
Q29 • MCQ • 1 marks
Which reaction forms two products from one reactant?
Q30 • MCQ • 1 marks
Which reaction forms one product from two reactants?
Q31 • MCQ • 1 marks
Which reaction involves exchange of ions?

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