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Q.

pK1 and pK2 of H2CO3 are respectively 6.38 and 10.26. pH of 1 M and 0.1 M NaHCO3 respectively are

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a

8.32, 7.32

b

7.32, 8.32

c

8.32, 8.32

d

7.32, 7.32

answer is C.

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Detailed Solution

HCO3−is amphiprotic  ∴ pH=pK1+pK22=8.32 pH being temperature independent
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