Teaching UKPSC Lecturer Mock Test Series 2024 General Science Chemistry Solutions

Which of the following is the buffer solution of strong acidic nature?

1
\({\rm{H}}_2{{\rm{C}}_2}{\rm{O}}_4^ + {{\rm{C}}_2}{\rm{O}}_4^{2 - }\)
2
CH3COOH+CH3COO-
3
HCOOH+HCOO-
4
\({{\rm{H}}_3}{\rm{BO}}_3^ + {\rm{BO}}_3^{3 - }\)
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