CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day

Check the CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day here.

Mohith Kumar

Updated on - Feb 12, 2025 | 12:39:00 PM

Check CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 Here (Image Credits: pexels.com).

CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day: The Central Board of Secondary Education (CBSE) has scheduled to conduct the CBSE Class 10 Science Examination 2025 on February 20, 2025. Chemical Reaction and Equation is one of the important chapters in the CBSE Class 10 Science Syllabus 2025. As per the official CBSE Class 10 Science Blue Print 2025, students can expect 8 marks from the Chemical Reaction and Equation unit. Interested students can check the CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day available here.

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CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day

Check the CBSE Class 10 Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day below.

a) Define Rusting.
b) Why do you apply paint on iron articles?
White the balanced reactions for the following:
a) Potassium Bromide(aq)+Bariumiodide(aq) → Potassium iodide(aq)+BariumBromide(bq)
b) Zinc carbonate(s) Zincoxide(s)+carbondioxide(g)
c) Hydrogen(g)+chlorine(g) → Hydrogen chloride
The reaction is given by Zn+H₂SO→ ZnSO4+H₂
i. White the ionic equation for the reaction.
ii. The ionic equations can be represented by two half equations. Write these equations.
iii. Explain why this is a redox reaction.
What are neutralization reactions? Why are they named so? Give one example.
Identify the type of reaction in the following
a) ZnCO3 + 2HCl (aq) → ZnCl2 (aq) + H2CO3 (aq)
b) 2NaBr (aq) + Cl (g) → 2NaCl (aq) + Br2 (aq)
c) 2CuO (s) Heat2Cu (s) + O2 (g)
A student dropped a few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write the balanced chemical equation for both the changes observed.
Write three equations for a decomposition reaction where energy is supplied in the form of heat, light and electricity.

The above-given CBSE 10th Chemical Reaction and Equation 3 Marks Question 2025 for Exam Day have appeared frequently in the CBSE Class 10 Examinations. Students are advised to solve the above questions for better results.

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