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To 10 mL of aqueous solution some strong acid having $pH$ = 2 is mixed with $pH$ = 4.0. The $pH$ of resulting solution is

(a) 4.0

(b) 4.10

(c) 3.8

(d) 4.25

1 Answer

Answer: $1 \times 10^{-4}$
 
$pH$ buffer solution remains almost constant on adding small amount of acid or a base.

 

answered Nov 29, 2013 by mosymeow_1
 

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