Equilibrium Question 408

Question: Assuming complete ionisation, the pH of $ 0.1,M,HCl, $ is 1. The molarity of $ H_2SO_4 $ with the same pH is [Pb. PMT 2002]

Options:

A) 0.1

B) 0.2

C) 0.05

D) 2.0

Show Answer

Answer:

Correct Answer: A

Solution:

The pH of 0.1M $ HCl=1 $ Ionization of $ H_2SO_4 $ takes place in two steps. $ H_2SO_4 $ ⇌ $ {H^{+}}+HSO_4^{-} $ ; $ HSO_4^{-} $ ⇌ $ {H^{+}}+SO_4^{-,-} $



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