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प्रश्न
Why is sublimation useful for separating iodine and sand?
विकल्प
A chemical reaction forms a new substance
Both solids turn to vapour
Only iodine turns to a vapour and is collected
Only sand changes state
MCQ
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उत्तर
Only iodine turns to a vapour and is collected
Explanation:
Only iodine sublimates and deposits on a cool surface, leaving sand behind.
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