MCQ
Correct order of nucleophilicity for $SN^2$ reaction
- A$\bar OH > {H_2}O > C{H_3}CO{O^ - }$
- ✓$\bar OH > C{H_3}CO{O^ - } > {H_2}O$
- C${H_2}O > C{H_3}CO{O^ - } > \bar OH$
- D${H_2}O = \bar OH = C{H_3}CO{O^ - }$
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$Zn_{(s)} +Cu^{+2}_{(aq)} \to Zn^{2+}_{(aq)} +Cu_{(s)}$
$[E^o_{Cu^{+2 /Cu}} = 0.34\,V$ , $E^o_{Zn^{2+} /Zn} = -0.76\,V ]$
Given, $\lambda_{\left(\mathrm{Ag}^{+}\right)}^{\circ}=6 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{Br}^{-}\right)}^{\circ}=8 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{NO}_{\mathrm{j}}\right)}^{\circ}=7 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$.

