AIIMS 2018 | Electrochemistry Question 3 | Chemistry

At $$25^{\circ} \mathrm{C}$$, the molar conductance at infinite dilution for the strong electrolytes $$\mathrm{NaOH}, \mathrm{NaCl}$$ and $$\mathrm{BaCl}_2$$ are $$248 \times 10^{-4}, 126 \times 10^{-4}$$ and $$280 \times 10^{-4} \mathrm{~Sm}^2 \mathrm{~mol}^{-1}$$ respectively. $$\lambda_{\mathrm{m}}^{\circ} \mathrm{Ba}(\mathrm{OH})_2$$ in $$\mathrm{Sm}^2 \mathrm{~mol}^{-1}$$ is

$$362 \times 10^{-4}$$

$$402 \times 10^{-4}$$

$$524 \times 10^{-4}$$

$$568 \times 10^{-4}$$

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

Assertion (A) For a Daniell cell $$\mathrm{Zn} / \mathrm{Zn}^{2+} \| \mathrm{Cu}^{2+} \mid \mathrm{Cu}$$ with $$E_{\text {cell }}=1.1 \mathrm{~V}$$, the application of opposite potential greater than $$1.1 \mathrm{~V}$$ results into the flow of electrons from cathode to anode.

Reason (R) Zn is deposited at zinc electrode and $$\mathrm{Cu}$$ is dissolved at copper electrode.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true, but (R) is not the correct explanation of (A).

(A) is true and (R) is false.

Both (A) and (R) are false.

AIIMS Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Evolution