MCQ
On heating glucose with Fehling's solution we get a precipitate whose colour is
- AYellow
- ✓Red
- CBlack
- DWhite
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$[Co(NH_3)_6 ][Cr(NO_2)_6 ]$ and $[Cr(NH_3)_6][Co(NO_2)_6]$

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]$\left [\text { Given : } E _{ Cu ^{2} / / Cu }=0.34\, V ; E _{ Sn ^{2} / Sn }^{\ominus}=-0.14 \,V ; F=96500\, C\, mol ^{-1}\right]$
$Fe|FeSO_4$ $E^o_{OP} = 0.44\, V$ $(a = 0.1\, M)$