MCQ
The $IUPAC$ name of is

- A$5-$ Hydroxy benzene carboxylate
- B$3-$ Hydroxy benzene carboxylate
- C$3-$ Methoxy carbonyl benzene $-1-$ ol
- ✓Methyl $3-$ hydroxy benzoate

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$\mathrm{Sn}^{4+}, \mathrm{Sn}^{2+}, \mathrm{Pb}^{2+}, \mathrm{Tl}^{3+}, \mathrm{Pb}^{4+}, \mathrm{Tl}^{+}$
The Gibbs free energy change for the above reaction at $298\, K$ is $x \times 10^{-1} \,k\,J\, mol ^{-1}$;
The value of $x$ is ..... [nearest integer]$\left [\text { Given : } E _{ Cu ^{2} / / Cu }=0.34\, V ; E _{ Sn ^{2} / Sn }^{\ominus}=-0.14 \,V ; F=96500\, C\, mol ^{-1}\right]$