MCQ
Which of the following solutions has the maximum $pH$ value ?
- A$0.2\ M\ HNO_3$
- B$0.2\ M\ HCl$
- C$0.2\ M\ CH_3COOH$
- ✓$0.2\ M\ CH_3COONa$
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${A_2}B(g) \to {A_2}(g) + B(g);\,\,\,\Delta {H^o} = 40\,kJ/mol$
${A_2}B(g) \to A(g) + AB(g);\,\,\,\Delta {H^o} = 50\,kJ/mol$
.....$ kJ/mol$