MCQ
$KMn{O_4}$ will oxidise acetylene to
- AEthylene glycol
- BEthyl alcohol
- ✓Oxalic acid
- DAcetic acid
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i.$\frac{\text{K}^+}{\text{K}}=-3.02\text{V}$ ii.$\frac{\text{Cu}^{2+}}{\text{Cu}}=+0.34\text{V}$
iii.$\frac{\text{Hg}^{2+}}{\text{Hg}}=0.92\text{V}$ iv.$\frac{\text{Cr}^{3+}}{\text{Cr}}=-0.74\text{V}$
Decreasing order of reducing power of these elements is:


$(a)$ $AgF$ is soluble and colourless is aqueous medium
$(b)$ For $LiF$ solubility and Melting point both are lower as compair to $NaF$
$(c)$ Solubility of $Rb_2SO_4$ is less as compair to $BaSO_4$
$(d)$ If $AgI$ is added to water colour of water will turned yellow from colourless