Electrochemistry Mhtcet Mocktest 2023

Electrochemistry Mhtcet Mocktest 2023. We have created a Online Mocktest test on Electrochemistry for Practicing multiple choice questions. Enhance your skills by solving Chapterwise Mocktest papers. Electrochemistry this chapter contains 4 to 5 marks at least in Mhtcet exam 2023. This is Online test series based on the Chapter Ionic Equilibria from Chemistry.

This is Online test series based on the Chapter Ionic Equilibria from Chemistry Contains 20 Questions from the Ionic Equilibria Quick Practicing Mock Test for the better remembering. Best of Luck. With Love!!

The Subtopics of the quiz are based on

Electrical Conduction
Electrical conductance of solution
Electrochemical cells
Electrolytic cells
Galvanic or voltic cells Thermodynamics of galvanic cells
Galvanic cells useful in day-to-day life
Fuel cells
Electrochemical series (Electromotive series)

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Created on February 03, 2022 By

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Mock Test On Electrochemistry

Introduction: Dry cell is used to power our electrical and electroic equipments because it generates electricity. Do you know how does a dry cell generate electricity? A chemical reaction occurs in it which generates electricity. Thus in a dry cell chemical electricity is converted into electrical energy. You are familiar with the electrolysis of solutions of ions. Eletrolysis is breaking down of ions compound by the passage of electricity. Breaking down of an electrolyte during electrolysis is a chemical reaction that takes place by the passage of electricity. Electrical energy is, thus, converted into chemical energy.Electrochemistry is the area of chemistry which is concerned with interconversion of chemical and electrical energy.It also deals with the resistance and conductance of aqueous electrolytic solutions. The determination of conductivities of aqueous electrolytic solutions provide an information on the extent of ionization of electrolytes in water.The current research in electrochemistry is focused on the design of fuel cells. The fuel cells are being explored as convenient and compact source of electricity.

1 / 20

In which of the following cells, the chemicals consumed during current generation CANNOT be regenerated?

Dry cell

Lead storage cell

Mercury cell

NICAD cell

2 / 20

For a spontaneous reaction, the ∆G° equilibrium constant (K) and E^°_cellwill be respectively____.

-ve, > 1, +ve

+ve, > 1, -ve

-ve, < 1, -ve

-ve, > 1, -ve

3 / 20

The cell potential of a NICAD cell is____.

1.1 V

2.0 V

1.0 V

1.4 V

4 / 20

How many Faradays of electricity will be required for reduction of 3 moles of Zn²⁺to Zn?

2 F

3 F

4 F

6 F

5 / 20

In dry cell, what acts as positive electrode?

Platinum

Graphite

Ammonium chloride

Zinc

6 / 20

Identify the CORRECT formula.

G = 1/R

R = k*l/a

R = 1/ρ

∧ = 1000c/k

7 / 20

Select the CORRECT option.

The cathode of electrolytic cell is negative.

The cathode of galvanic cell is negative.

The anode of galvanic cell is positive.

The anode of electrolytic cell is negative.

8 / 20

Identify the INCORRECT statement.

The molar conductivity of weak electrolytes increases rapidly on dilution.

The molar conductivity of strong electrolytes varies linearly with square root of concentration.

Both cation and anion contribute to molar conductivity of the electrolyte at zero concentration.

Electrolytic conductivity of a solution increases with decrease in concentration of solution.

9 / 20

Calculate. E^o_cell of the following cell:

Cd_(s) | Cd₂ (1 M) || Au₃+ (1M) | Au_(s)

E^o_Ni =-0.403 V, E^o_Au =-+1.500 V

-1.097 V

1.097 V

-1.903 V

1.093 V

10 / 20

A current is passed through two cells connected in series. The first cell contains X(NO₃)_3(aq)and the second cell contains Y(NO₃)_2(aq). The relative atomic masses of X and Y are in the ratio 1:2. What is the ratio of liberated mass of X to that of Y?

3 : 2

1 : 2

1 : 3

3 : 1

11 / 20

Al, CR and SN can be coloured by an electrochemical process called?

Refining

anodizing

electroplating

galvanizing

12 / 20

The atomic weight of Fe is 56 u. the weight of Fe deposit from FeCl3 solution by passing 0.6 Faraday of electricity is___.

5.6 g

11.2 g

22.4 g

33.6 g

13 / 20

What is the mass of Cu metal produced at the cathode during the passage of 2 ampere current through CuSO4 solution for 965 minutes? Molar mass of Cu is 63.5 g mol^-1

25.5 g

38.1 g

63.5 g

76.2 g

14 / 20

The standard Gibbs energy change at 25 °C for the following cell reaction is_____ kJ.

Cd_(s) + Sn²⁺_(aq) ------> Cd²⁺_(aq)+ Sn_(s)

E^o_Cd = -0.403 V and E^o_Sn = - 0.136 V.

+51.53

-51.53

-27.77

+25.77

15 / 20

Al 25 °C, conductivity of KCL solution is 0.00141 Ω^-1 cm^-1. The resistance of the solution is 604 ohms. The cell constant is _____cm^-1

0.85

0.92

0.98

0.69

16 / 20

A Solution of Ni(NO3)2 is electrolyzed between platinum electrodes using 0.1 Faraday electricity. How many moles of Ni will be Deposite at the cathode?

0.20

0.15

0.10

0.05

17 / 20

Which of the following is a nonelectrolyte?

Hydrochloric acid

Sucrose

Acetic acid

Potassium chloride

18 / 20

In a galvanic cell,__ energy is converted into__energy.

Chemical ; electrical

Electrical ; mechanical

Chemical ; mechanical

Electrical ; chemical

19 / 20

The conduction of electricity through a metallic conductor is due to the movement of____.

metal atoms

electrons

cations

anions

20 / 20

The charge of one mole electron is___.

96500 C

1 C

9650 C

96500 F

Your score is

The average score is 45%

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The Subtopics of the quiz are based on

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