Which of the following is a buffer system? O HCl(aq) and NaOH(aq) O H2CO3(aq) and KHCO3(aq)...

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Answer 1

Answer #1

1 Buffer solution are those solutions which resist a change in pH upon addition of small amount of acid or base.

It can be prepared by:-

a) mixing weak acid and its salt with strong base .

b) mixing weak base and its salt with strong acid

c) solution of weak acid and weak base.

Here H2CO3 is weak acid and KHCO3 is its salt with strong base so it will form buffer system

Hence H2CO3 and KHCO3 is buffer system .

2 The given molecule is alpha form of glucose.

It is also called pyranose structure.

CHLOH tots 1o -D (+)- Glucopyrano se

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Answer 2

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