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Question

Amount (in grams) of oxygen required for the complete combustion of 2 moles of benzene is.


A
450g
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B
480g
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C
500g
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D
530g
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Solution

The correct option is B 480g

The balanced reaction for combustion of benzene is :
2C6H6+15O2  12CO2+6H2O
Therefore, 15 moles of oxygen gas is required for the complete combustion of benzene.
We know that, 1 mole of O2 = 32g
15 moles of O2 = 15 × 32 = 480g


Chemistry

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