AP EAMCET Medical 25 Sep 2020 Shift 2 Paper

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Question : 149 of 161

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Buffer solutions have constant pH values because

They have large excess off H+ ‌or‌ ‌OH− ions
They have fixed value of pH, pH of the buffer changes with dilution
These give unionized acid or base on reaction with added acid or alkali
Acids and alkalis in these solutions are shielded from attack by other ions

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