MHT CET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Mixture of iodine and Sodium Sulphate is separated by

A Sublimation
B Chromatography
C differential extraction
D distillation

Verified Solution

Answer & Solution

Correct Answer

(A) Sublimation

Step-by-step Solution

Detailed explanation

Mixture of iodine and sodium sulphate is separated by sublimation.
Sublimation separates iodine and sodium sulphate. It is the process of a substance transitioning from a solid to a gaseous form without passing through the liquid state. The sublimation technique is used to separate mixtures that contain a sublimate with a volatile component from non-sublimate impurities. Iodine is used as a sublimate and sodium sulphate is used as a non-sublimate impurity in this mixture.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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