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Subject :NSO    Class : Class 8

Observe the figure of destructive distillation of coal. What are the three fractions X, Y and Z?

A Coal gas Coal tar Coke
B Coal gas Coke Coal
C Coal gas Coal tar Impure coal
D Carbon dioxide Coal tar Coal

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
The right answer is Option A

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