MCQ
Potassium ferrocyanide is a
- ANormal salt
- BMixed salt
- CDouble salt
- ✓Complex salt
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$CH_3CHO$ $( I )$, $CH_3CH_2OH$ $( II )$
$CH_3OCH_3$ $( III )$, $CH_3CH_2CH_3$ $( IV )$

(ii) Silver metal does not react with $1 M$ zinc nitrate solution
(iii) Zinc metal dissolves in $1M$ copper sulphate solution and copper metal gets depositedHence the order of decreasing strength of the three metals as reducing agents will be