Buffer solutions have constant acidity and alkalinity because – McqOptions

MCQOPTIONS

1.	Buffer solutions have constant acidity and alkalinity because [CBSE AIPMT 2012]
A.	They have large excess of H+ or OH– ions
B.	They have fixed value of pH
C.	These give unionised acid or base on reaction with added acid or alkali
D.	Acids and alkalies in these solutions are shielded from attack by other ions
Answer» D. Acids and alkalies in these solutions are shielded from attack by other ions

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