Chemistry · 2025
NEET 2025 · 4 May · Code 45 · Q61
If the molar conductivity (Λ_m ) of a 0.050 mol L^-1 solution of a monobasic weak acid is 90 S cm^2 mol^-1, its extent (degree) of dissociation will…
If the molar conductivity $\displaystyle \left(\Lambda_{\mathrm{m}}\right)$ of a $\displaystyle 0.050 \mathrm{~mol} \mathrm{~L}^{-1}$ solution of a monobasic weak acid is $\displaystyle 90 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$, its extent (degree) of dissociation will be
[Assume $\displaystyle \Lambda_{+}^{\circ}=349.6 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ and
$\displaystyle \Lambda_{-}^{\circ}=50.4 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$.]
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 0.225$
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NEET (UG) 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.