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Subject :NSO    Class : Class 9

The given diagram represents a fractionating column where petroleum is separated into various fractions. Arrange the fractions X, Y, Z in order of decreasing boiling point range and identify the fraction that condenses first.

AZ > Y > X; X
BZ > Y > X; Z
CX > Y > Z; Y
DY > Z > X; Z

Fractional distillation.

Ans 1:

Class : Class 9

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