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Mani Gupta from Carmel Convent School, Faridabad
Subject :NSO    Class : Class 8

When petroleum is heated in a fractionating column, various gaseous fractions are condensed according to their boiling points.
Which of the following fractions will condense near the top of fractionating column?

APetrol
BDiesel oil
CFuel oil
DKerosene


Ans 1:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8

Ans 2:

Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Class : Class 8

Ans 3:

Archi from Mothers Global School, Delhi
Class : Class 10

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