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Q.

Two litre solution contains 4 grams of NaOH. 4.9 grams of H2SO4 is added to the solution.  pH of the solution at 298K will be

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a

2

b

7

c

13.3010

d

12.6990

answer is C.

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Detailed Solution

Gram equivalents of 
NaOHS.B=440=0.1
Gram equivalents of 
H2SO4S.A=4.949=0.1
∴the solution is neutral,  pH = 7

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