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Electrochemistry question

2023 · Shift 1 · Q5

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PYQ Library
JEE Advanced
Chemistry
Electrochemistry
2023 · Shift 1 · Q5

Electrochemistry question

2023 · Shift 1 · Q5

JEE AdvancedChemistryElectrochemistryMCQ+3 / −1

Plotting

1 / \Lambda_{\mathrm{m}}

against

\mathrm{c} \Lambda_{\mathrm{m}}

for aqueous solutions of a monobasic weak acid

(\mathrm{HX})

resulted in a straight line with

\mathrm{y}

-axis intercept of

\mathrm{P}

and slope of

\mathrm{S}

. The ratio

\mathrm{P} / \mathrm{S}

is

\begin{aligned} & {\left[\Lambda_{\mathrm{m}}=\right.\text { molar conductivity }} \\\\ & \Lambda_{\mathrm{m}}^{\mathrm{o}}=\text { limiting molar conductivity } \\\\ & \mathrm{c}=\text { molar concentration } \\\\ & \left.\mathrm{K}_{\mathrm{a}}=\text { dissociation constant of } \mathrm{HX}\right] \end{aligned}

A
$\mathrm{K}_{\mathrm{a}} \Lambda_{\mathrm{m}}^{\mathrm{o}}$
B
$\mathrm{K}_{\mathrm{a}} \Lambda_{\mathrm{m}}^{\mathrm{o}} / 2$
C
$2 \mathrm{~K}_{\mathrm{a}} \Lambda_{\mathrm{m}}^{\mathrm{o}}$
D
$1 /\left(\mathrm{K}_{\mathrm{a}} \Lambda_{\mathrm{m}}^{\mathrm{o}}\right)$

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