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Efficiency of Fuel

A sample of p...

Question

A sample of petrol is a mixture of $30 %$ n-heptane and $70 %$ iso-octane. The sample has octane number

A

30

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B

70

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C

15

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D

35

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Solution

The correct option is B $70$
Petrol sample contain $30 % n -$ heptane $+ 70 %$ iso-octane. Hence, octane number is $70$ .

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