The decreasing order of acidic character of the following is:I. CH3SH II. CH3OH III. H2O IV. EtOH
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a
I > II > III > IV
b
IV > III > II > I
c
I > III > II > IV
d
III > I > II > IV
answer is A.
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Detailed Solution
Thiols (RSH) are stronger acid than alcoholsMethanol (pKa=15.5) is a stronger acid than H2O (pKa=15.7),but other alcohols are weaker than H2O.So (1) has acidiccharacter.