AIEEE 2006 | Electrochemistry Question 160 | Chemistry

The molar conductivities $$ \wedge _{NaOAc}^o$$ and $$ \wedge _{HCl}^o$$ and at infinite dilution in water at 25^oC are 91.0 and 426.2 Scm²/mol respectively. To calculate $$ \wedge _{HOAc}^o$$ , the additional value required is

$$ \wedge _{{H_2}O}^o$$

$$ \wedge _{KCl}^o$$

$$ \wedge _{NaOH}^o$$

$$ \wedge _{NaCl}^o$$

AIEEE 2006

MCQ (Single Correct Answer)

-1

Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100$$\Omega $$. The conductivity of this solution is 1.29 S m^–1. Resistance of the same cell when filled with 0.2 M of the same solution is 520 $$\Omega $$, The molar conductivity of 0.02 M solution of the electrolyte will be

124 $$\times$$ 10^–4 S m² mol^–1

1240 $$\times$$ 10^–4 S m² mol^–1

1.24 $$\times$$ 10^–4 S m² mol^–1

12.4 $$\times$$ 10^–4 S m² mol^–1

AIEEE 2006

MCQ (Single Correct Answer)

-1

Given the data at 25^oC,
Ag + I^- $$\to$$ AgI + e^- , E^o = 0.152 V
Ag $$\to$$ Ag⁺ + e^-, E^o = -0.800 V
What is the value of log K_sp for AgI? (2.303 RT/F = 0.059 V)

–8.12

+8.612

–37.83

–16.13

AIEEE 2005

MCQ (Single Correct Answer)

-1

The highest electrical conductivity of the following aqueous solutions is of :

0.1 M acetic acid

0.1 M chloroacetic acid

0.1 M fluoroacetic acid

0.1 M difluoroacetic acid