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Consider the following complexes
1. K₂PtCl₆
2. PtCl₄.2NH₃
3. PtCl₄.3NH₃
4. PtCl₄.5NH₃
Their electrical conductance in aqueous solutions are

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Important Questions on Electrochemistry

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Unit of specific conductance :

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The graph of

\sqrt{C} vs \land_{m}

for an aqueous solution of which substance is not obtained as a straight line?

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The specific conductance of an aqueous

{KNO}_{3}

solution at

298 K,

for a fixed concentration is

0.024 {ohm}^{- 1} {cm}^{- 1} .

If the resistance of a cell containing this solution at

298 K

was found to be

85 ohm,

then find its cell constant.

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Electrical conductivity of an electrolyte depends upon

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

What is the SI unit of conductivity?

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The resistance of a conductivity cell containing

0.001 MKCl

solution at

298 K

1500 Ω

. What is the cell constant if the conductivity of

0.001 MKCl

solution at

298 K

0.146 \times 10^{- 3} {Scm}^{- 1} .

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The electrical resistance of a column of

0.05 MNaOH

solution of diameter

1 cm

and length

50 cm

6.5 \times 10^{3} ohm .

Its molar conductivity will be

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The resistance of a conductivity cell containing

0.01 MKCl

solution at

298 K

1750 Ω

. If the conductivity of

0.01 MKCl

solution at

298 K

0.152 \times 10^{- 3} S {cm}^{- 1}

, then the cell constant of the conductivity cell is____

\times 10^{- 3} {cm}^{- 1}

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

What is the common unit of conductivity if the dimensions are expressed in centimeter?

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

An electrolyte of a polymer-salt complex of poly (ethylene oxide) -

{LiCF}_{3} {SO}_{3}

is shaped into a free standing circular film of

20 mm

diameter and a thickness of

20 μ m .

When it is sandwiched between 2 stainless steel circular electrodes of the same diameter, this cell exhibits a conductance of

\frac{314}{5} S .

What is the specific conductivity of the electrolyte?

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Which of the following solutions of

KCl

will have highest specific conductance?

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Amongst the following, the form of water with the lowest ionic conductance at

298 K

is:

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

On which of the following factor ionic conductivity of solution does not depend?

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The S.I. unit of cell constant for conductivity cell is :

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

If the conductivity of mercury at

0 ° C

1.07 \times 10^{6} S m^{- 1}

and the resistance of a cell containing mercury is

0.243 Ω,

then the cell constant of the cell is

x \times 10^{4} m^{- 1} .

The value of

x

is ______ . (Nearest integer)

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Which of the following terms does not represent electrical power in a circuit?

HARD

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

An electron falls from rest through a vertical distance

h

in a uniform and vertically upward directed electric field

E

. The direction of electric filed is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance

h

. The time of fall of the electron, in comparison to the time of fall of the proton is

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The value of electrical resistance at super conductivity state is

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

Let

C_{NaCl}

and

{C_{BaSO}}_{4}

, be the conductances (in S) measured for saturated aqueous solutions of

NaCl

and

B a S O_{4}

respectively, at a temperature T. Which of the following is false?

EASY

Chemistry>Physical Chemistry>Electrochemistry>Electrolytic and Metallic Conduction

The decreasing order of electrical conductivity of the following aqueous solutions is:

(A)

0.1 M

Formic acid,

(B)

0.1 M

Acetic acid,

(C)

0.1 M

Benzoic acid.

Consider the following complexes 1. K2PtCl6 2. PtCl4.2NH3 3. PtCl4.3NH3 4. PtCl4.5NH3 Their electrical conductance in aqueous solutions are

Important Questions on Electrochemistry

Learn and Prepare for any exam you want !

Consider the following complexes
1. K₂PtCl₆
2. PtCl₄.2NH₃
3. PtCl₄.3NH₃
4. PtCl₄.5NH₃
Their electrical conductance in aqueous solutions are