two liquids are separatedusing simple distillation if the temperature difference between their and boiling points is more than or equal to
a) 25 degC
b) 40 degC
c) 50 deg C
d) 70 degC

The answer should be 25 deg C. right. please clarify. Because when I did the test the answer shown is 70 deg C

Dear Student,

The boiling point of water is 100 C and the difference between any two liquid must be half the difference of it for performing distillation in simple column. Hence the answer is 50C Option (C).

Regards.

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