MCQ
Which of the following has highest $pH$
- A$0.1\,M\,HCl$
- B$0.2\,M\,HCl$
- ✓$0.1\,M\,CH_3COOH$
- D$0.15\,M\,HNO_3$
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$C{H_3} - {(C{H_2})_3} - O - C{H_3}$
$C{H_3} - C{H_2} - O - C{H_2} - C{H_2} - C{H_3}$
$C{H_3} - \mathop {CH}\limits_{\mathop {|\,\,\,\,}\limits_{C{H_3}} } - O - C{H_2} - C{H_3}$ is
$C{r_2}O_7^{2 - } + F{e^{2 + }} + {C_2}O_4^{2 - } \to C{r^{3 + }} + F{e^{3 + }} + C{O_2}$ (Unbalanced)

[Atomic number: $S =16, C 1=17, I =53$ and $Xe =54$ ]