The no. of moles of CO2 molecules formed during combustion reaction of benzene (C6H6) is
a) 6 b) 8 c)10 d)12
Explain the method to find the answer.

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Solution

The reaction occurring is as follows:

2 C₆H₆ + 15 H₂O ---------> 12 CO₂ + 6 H₂O

Thus, there are 6 CO₂ molecules formed per molecule of benzene.
In combustion all C atoms are converted to CO₂
hence no. of C in a molecule = no. of CO₂ molecules.

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