MCQ
Which is heaviest among the following
- AIron
- BCopper
- ✓Gold
- DSilver
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$1.$ The compounds $\mathrm{P}$ and $\mathrm{Q}$ respectively are
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$2.$ The compound $R$ is
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$3.$ The compound $\mathrm{S}$ is
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Give the answer question $1,2$ and $3.$


$\Lambda _{C{H_3}COONa}^o =91.0\, S \,cm^2 /equiv.$
$\Lambda _{HCl}^o =426.2 \,S \,cm^2 /equiv.$
What additional information$/$quantity one needs to calculate ${\Lambda ^o}$ of an aqueous solution of acetic acid ?
