The more is the value of equilibrium constant, the more is the completion of reaction or more is the concentration of products i.e. the order of relative strength would be OH−>CN−>H2O
JEE Main 2012 — Chemistry Physical Chemistry
Given (i) HCN(aq)+H2O(b)⇌H3O+(aq)+CN−(aq) Ka=6.2×10−10 (ii) CN−(aq)+H2O(l)⇌HCN(aq)+OH−(aq) Kb=1.6×10−5. These equilibria show the following order of the relative base strength,
Held on 12 May 2012 · Verified 6 Jul 2026.
OH−>H2O>CN−
OH−>CN−>H2O
H2O>CN−>OH
CN−>H2O>OH−
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