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ICSE Class 8 Chemistry — Full Syllabus Sample Paper

A full-syllabus ICSE Class 8 Chemistry paper in the board pattern: 80 marks, covering every chapter. The answer key is a separate download, so you can print the paper for your child without the answers.

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Paper: PDF, 3.8 MB · Answer key: PDF, 5.4 MB · Updated for 2026–2027

A taste of the paper

Here are three questions from the paper. Download the full PDF for all 80 marks' worth.

Question 1 · Picture-based MCQ

Observe the image showing two samples of copper sulphate side by side — one is white and the other is blue. Which of the given options best identifies the two samples? [1]

Two glass dishes side by side, one holding a heap of white crystals and the other a heap of blue crystals
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✓ Hydrated copper sulphate (CuSO₄·5H₂O) is blue. When heated, it loses its water of crystallisation and becomes white anhydrous copper sulphate. Adding water to the white powder turns it blue once again.

Question 2 · Application MCQ

Riya heats some sugar in a pan. First it melts into a clear syrup, then it turns brown and gives off a burnt smell. On cooling, the brown mass becomes hard. Which of these shows that a chemical change has taken place? [1]

✓ Melting and hardening on cooling change only the physical state of the sugar, and the pan getting hot is only the effect of heating. The change in colour and the new smell show that new substances have been formed, so this is a chemical change.

Question 3 · Application question

Hot rice is packed in a steel tiffin box and the lid is closed. When the box is opened at lunch time, drops of water are seen on the underside of the lid. Name the two changes of state that have taken place and explain each of them in terms of the particles of water. [3]

Answer: The two changes are evaporation and condensation.

First, water evaporates from the hot rice: some of the water particles at the surface move fast enough to overcome the attraction of the neighbouring particles and escape as water vapour into the closed box.

Then condensation takes place at the lid, which cools faster than the rice: when the vapour touches the cooler lid, it loses heat, its particles lose energy and slow down, and they come close together again to form drops of liquid water on the underside of the lid.

Also free: ICSE Class 8 Chemistry Chapter Worksheet →

Also free: ICSE Class 8 Chemistry Chapter Mind Map →

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