Equilibrium Question 47
Question: At $ 90^{o}C $ pure water has $ [H_3{O^{+}}]={10^{-6}},M, $ the value of $ K_{w} $ at this temperature will be [IIT 1981; MNR 1990; CBSE PMT 1993; UPSEAT 1999]
Options:
A) $ {10^{-6}} $
B) $ {10^{-12}} $
C) $ {10^{-14}} $
D) $ {10^{-8}} $
Show Answer
Answer:
Correct Answer: B
Solution:
For pure water $ [H^{+}] = [OH^{-}] $ , $ \therefore ,K_{w}={10^{-14}} $ s
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