Q.
Phenol (mol.wt.94) dimerised to 60% in a solvent, the observed molar mass of phenol will be
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a
less than 94
b
134.2
c
94
d
150
answer is B.
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Detailed Solution
α=1−i1−1/n0.6=1−i1−1/2i=0.7i=Normal molar massabnormal molar massAbnormal molar mass = 940.7=134.28
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