Easy MCQ +4 / -1 PYQ · JEE Mains 2021

Match List - I with List - II

List - I
(Parmeter)
List - II
(Unit)
(a) Cell constant (i) $S\,c{m^2}mo{l^{ - 1}}$
(b) Molar conductivity (ii) Dimensionless
(c) Conductivity (iii) ${m^{ - 1}}$
(d) Degree of dissociation of electrolyte (iv) ${\Omega ^{ - 1}}{m^{ - 1}}$


Choose the most appropriate answer from the options given below :

  1. A (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) Correct answer
  2. B (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
  3. C (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
  4. D (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

Solution

Cell constant = $\left( {{l \over A}} \right)$ $\Rightarrow$ Units = m<sup>$-$1</sup><br><br>Molar conductivity ($\Lambda$<sub>m</sub>) $\Rightarrow$ Units = Sm<sup>2</sup> mole<sup>$-$1</sup><br><br>Conductivity (K) $\Rightarrow$ Units = S m<sup>$-$1</sup><br><br>Degree of dissociation ($\alpha$ $\to$ Dimensionless<br><br>$\therefore$ (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

About this question

Subject: Chemistry · Chapter: Electrochemistry · Topic: Electrochemical Cells

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