Equilibrium Question 499
Question: $ pH $ value of $ N/10NaOH $ solution is [CBSE PMT 1996;Pb. CET 2001; Pb. PMT 2002]
Options:
A) 10
B) 11
C) 12
D) 13
Show Answer
Answer:
Correct Answer: D
Solution:
In $ \frac{N}{10} $ NaOH have $ [O{H^{-}}]={10^{-1}} $ M means $ pOH=1 $ and then $ pH+pOH=14 $
$ pH=14-pOH=13 $ .