Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 13

HARD

JEE Main

IMPORTANT

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When a certain conductivity cell was filled with $0.01 M$ solution of $KCl$ , it had a resistance of $160 Ω$ at $25 ° C$ , and when filled with $0.005 M NaOH$ , it had a resistance of $190 Ω$ . If specific resistance of $KCl$ solution is $700 Ω . cm$ , specific conductance $(in Ω^{- 1} {cm}^{- 1})$ of the $NaOH$ solution is:

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Important Questions on Electrochemistry

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 14

Variation of resistance with an increase in cell constant gives a graph of the type:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 15

The molar conductivity of

{LiNO}_{3}

at infinite dilution is

10^{5} S {cm}^{2} {mol}^{- 1}

. If

0.02 M

solution shows conductance of

0.158 {ohm}^{- 1}

using cell of cell constant

1 {cm}^{- 1}

. The concentration of

{Li}^{+}

ion in

g {litre}^{- 1}

is

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 16

The absolute velocity of

{Ag}^{+}

and

{NO}_{3}^{-}

are

5.7 \times 10^{- 4} cm \sec^{- 1}

and

6.9 \times 10^{- 4} cm \sec^{- 1}

respectively. Assuming complete dissociation of

{AgNO}_{3}

, calculate the molar conductivity of

{AgNO}_{3}

at infinite dilution.

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 17

{AgNO}_{3} (aq)

was added to an aqueous solution of

KCl

gradually and the conductivity of the solution was measured. The plots of conductance,

Λ

vs volume of

{AgNO}_{3} (aq)

is:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 18

Which one is the correct statement?

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JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 19

An ion travels

0.4 cm

in

1 minute

under the influence of

2 volt

potential difference when electrodes are

3 cm

apart. Which are correct?

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 20

Which ion(s) has/have exceptionally higher

λ^{\infty}

values?

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part - 2 JEE Main & Advanced>Chapter 3 - Electrochemistry>DPP 3.1>Q 21

The formula

α = \frac{λ_{v}}{λ_{o}}

does not hold good for