1.

Solution of an acid and it's anion (that is it's conjugate base) or of a base and it's common cation are buffered. When we add a small amount of acid or base to any one of them, the pH of solution changes very little pH of buffer solution can be compoted as , for , acidic , buffer pH = pK_(a) + "log"(["Conjugate base"])/(["Acid"]) for basuc buffer pOH = pK_(b) + "log" (["Conjugated base"])/(["base"]) it is generally accepteed that a solution has useful buffer capacity (pH change resistng power) provided that the value of [salt or conjugate base]/[acid] for acidic acid buffer lies within the range of 1:10 to 10:1. Buffer capacity is max. When [conjugate base]=[acid] Select correct statement:

Answer»

When we add shall amount of `NAOH` inacidicbuffer SOLUTION, pOH of the solution is increases
When we add small amount of NaOH in basic buffer solution, PH of the solution is incrases
When we add small amount of waterof the acidic buffer solution, pH of the solution is decreases
When `100 ml` of `0.2 M CH_(3)COOH` REACT with `200 ml` of `0.1 M NaOH`, buffer solution is formed

Solution :N//A


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