Question 11 — You are given a - Questions at the end of the chapter - Chapter 5 - Exploring Mixtures and their Separation (Exploration)

Last updated at June 28, 2026 by

You are given a mixture of sand, common salt and naphthalene. The figure shows steps to separate them. Identify the correct sequence of separation techniques.
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Step 1 — Sublimation: Heat the mixture so naphthalene sublimes and is collected, leaving sand and salt behind.

Step 2 — Dissolving and filtration: Add water to dissolve the salt, then filter; sand stays on the filter paper while salt solution passes through.

Step 3 — Evaporation (or crystallization): Evaporate the salt solution to recover the common salt.

← Back to concept: 5.4.2 Sublimation
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