Mole ConceptHard

Question

When acetylene is passed through red hot metal tubes, some molecules trimerize to form benzene. The molecular mass of the gaseous mixture, when acetylene is passed through the tube is 60. The degree of trimerization of acetylene is

Options

A.0.85
B.0.60
C.0.15
D.0.283

Solution

$\alpha = \frac{M_{o} - M}{(n - 1).M} = \frac{26 - 60}{\left( \frac{1}{3} - 1 \right) \times 60} = 0.85$

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