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.

(a) What could X be ?

(b) What could Y be ?

(c) Name the process Z.

(d) Which process would you use to recover both the components X and Y from tincture of iodine ?

(e) Which process can be used to recover only component Y from tincture of iodine ?

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Solution

a) X - alcohol
b) Y - iodine
c) Z - Sublimation
d) It can be separated by simple distillation as iodine is present in solid form and alcohol is in liquid form and the difference between their boiling points is more than 25^oC.

e). Evaporation.

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Q. 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.

(a) What could X be ?
(b) What could Y be ?
(c) Name the process Z.
(d) Which process would you use to recover both the components X and Y from tincture of iodine ?
(e) Which process can be used to recover only components Y from tincture of iodine ?

Tincture of iodine is a mixture of two materials iodine and alcohol. One of the material has a property that its solid form can be converted directly into vapours on heating by a process called X. Identify the material that sublimes and process X?

Q. You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
(a) evaporation
(b) simple distillation
(c) fractional distillation
(d) crystallisation

You are given a mixture of iodine in alcohol called tincture of iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture, if the difference between the boiling points of iodine and alcohol is more than $25^{\circ} C$ ?

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a) X - alcohol b) Y - iodine c) Z - Sublimation d) It can be separated by simple distillation as iodine is present in solid form and alcohol is in liquid form and the difference between their boiling points is more than 25oC. e). Evaporation.

a) X - alcohol
b) Y - iodine
c) Z - Sublimation
d) It can be separated by simple distillation as iodine is present in solid form and alcohol is in liquid form and the difference between their boiling points is more than 25^oC.

e). Evaporation.