Separation Techniques — Homi Bhabha Exam Chemistry MCQs with Solutions
Free Homi Bhabha Exam Chemistry Separation Techniques MCQs with step-by-step solutions (6 questions). Part of Matter & Its States. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Separation Techniques · medium · theory
The method used to separate an insoluble solid from a liquid is:
A. distillation
B. chromatography
C. evaporation
D. filtration ✓ Correct
Solution: Filtration traps insoluble solids on the filter while the liquid passes through.
Q2 — Separation Techniques · medium · theory
Common salt can be recovered from its solution in water by:
A. filtration
B. evaporation ✓ Correct
C. magnetic separation
D. sublimation
Solution: Evaporating the water leaves behind the dissolved salt as a solid.
Q3 — Separation Techniques · hard · theory
Two miscible liquids with different boiling points (e.g. water and alcohol) are best separated by:
A. filtration
B. decantation
C. hand-picking
D. distillation ✓ Correct
Solution: Distillation vaporises the more volatile liquid, which is then condensed and collected separately.
Q4 — Separation Techniques · hard · theory
The technique used to separate the different coloured dyes present in ink is:
A. filtration
B. winnowing
C. chromatography ✓ Correct
D. evaporation
Solution: Chromatography separates components (dyes) that travel different distances on a medium.
Q5 — Separation Techniques · medium · theory
A mixture of iron filings and sulphur powder can be separated using:
A. a magnet ✓ Correct
B. a filter paper
C. evaporation
D. a sieve only
Solution: Iron is magnetic and can be picked out with a magnet, leaving the sulphur behind.
Q6 — Separation Techniques · hard · theory
A mixture of common salt and camphor is best separated by:
A. magnetic separation
B. filtration
C. decantation
D. sublimation ✓ Correct
Solution: Camphor sublimes on heating and can be collected, while the salt is left behind.