Equilibrium Question 523
Question: Assuming complete dissociation, the $ pH $ of a 0.01 M $ NaOH $ solution is equal to [NCERT 1975; CPMT 1977; DPMT 1982; BHU 1997]
Options:
A) 2.0
B) 14.0
C) 12.0
D) 0.01
Show Answer
Answer:
Correct Answer: C
Solution:
$ {10^{-2}},M,NaOH $ will give $ [O{H^{-}}]={10^{-2}} $
$ \therefore ,pOH=2 $ , Also $ pH+pOH=14 $
$ \therefore ,pH=12 $ .
