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Question
Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.
- What could X be ?
- What could Y be ?
- Name the process Z.
- Which process would you use to recover both the components X and Y from tincture of iodine ?
- Which process can be used to recover only component Y from tincture of iodine ?
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Solution
- Tincture iodine is a mixture of two materials X and Y. So, X is alcohol.
- The material Y has a property and its solid form can be converted directly into vapours on heating by the process called Z. So, Y is iodine.
- Process Z is called sublimation.
- Process used to recover both the components, i.e., alcohol and iodine, from the tincture of iodine is distillation.
- The process used to recover component Y only from the tincture of iodine is evaporation.
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