MCQ
The conjugate acid of ${S_2}O_8^{2 - }$ is
- A${H_2}{S_2}{O_8}$
- B${H_2}S{O_4}$
- C$HSO_4^ - $
- ✓$H{S_2}O_8^ - $
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(Take: $\log 2=0.30 ; \log 2.5=0.40)$