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Give one example each of a mixture which...

Give one example each of a mixture which shows the following characteristics.
(a) A mixture of two volatile component.
(b) A mixture of two volatile components with a boiling point difference less than 25 K.
(c ) A mixture of a volatile and a non-volatile component.

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(a) Iodine and camphor
(b) Acetone (b.p. = 319 K) and ethyl alcohol (b.p. = 341K)
(c ) Naphthalene and sodium chloride.
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