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Chemistry · 2024 · 1 mark
CBSE 2024 · Region 4 · Set 3 · Q1
The molar ionic conductivities of Al^3+ and SO_4^2- are 189 S cm^2 mol^-1 and 160 S cm^2 mol^-1 respectively. The value of limiting molar…
The molar ionic conductivities of $\displaystyle \mathrm{Al}^{3+}$ and $\displaystyle \mathrm{SO}_{4}^{2-}$ are $\displaystyle 189 \mathrm{~S} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}$ and $\displaystyle 160 \mathrm{~S} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}$ respectively. The value of limiting molar conductivity of $\displaystyle \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}$ will be :
Official answer
(B)
$\displaystyle 858 \mathrm{~S} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}$
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CBSE Class 12 Chemistry past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.