Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Separation Methods of MixturesMedium · 45s
Which of the following mixtures can be separated by sublimation? 1. Ammonium chloride and salt 2. Camphor and sand 3. Iron filings and sulphur Select the correct answer using the code below:
TopicSeparation Methods of Mixtures
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Sublimation separates solids which sublime on heating like ammonium chloride or camphor.
Final Answer: Option A — 1 and 2 only