11th Class Chemistry Chapter 10 MCQ Test with Answer

MCQ's Test For Chapter 10 "Electrochemistry"

Try The MCQ's Test For Chapter 10 "Electrochemistry"

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Electrochemistry

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Question # 1

A more genative Eo value means the electrode

Question # 2

In an electrolysis exprement if a charge 96,500 Coluombs is passed trough a solution, the amount of substance liberated or deposited at the electrode is directly relatd to.

Question # 3

Electroysis requires.

Question # 4

Whcih metal will displace Cu from CuSO4 Solution.

Question # 5

Electrolysis of CuSO4  using copper eletrodes results in

Question # 6

Electrochemical cells convert chemical energy into 

Question # 7

Which metal is the best reducing agent.

Question # 8

If Eo cell is +1.10 V , the reactio is

Question # 9

The metal depostied at cathode during electolysis of NaCl is.

Question # 10

Electrochemical equivalent is.

Question # 11

What is the unit of cell potanetial.

Question # 12

Which species is educed in the followig rection ? Zn + Cu --------- Zn

Question # 13

The salt brige allows tranfer of ........in Zn -Cu voltaic cell

Question # 14

In an electrochecmial cell, which ion migrates to cathode through the salt bridge.

Question # 15

For a redox reaction to be spontaneous, Delga G should be

Question # 16

Redox reactions always involve.

Question # 17

A positive value for the standared electrode potential of a metal ion metal half cell indicate that

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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's

Sr.# Question Answer
1 Faradya's First Law states tass deposited is diretly proportional tohat m
A. Time
B. Voltage
C. Resistance
D. Quantity of electricity passed
2 Which species is educed in the followig rection ? Zn + Cu --------- Zn
A. Cu2+
B. Zn
C. Cu
D. Zn3+
3 If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
A. CuSO4 Solution
B. Zn SO4 Solution
C. Cu Ions
D. Zn Solid
4 For a redox reaction to be spontaneous, Delga G should be
A. Positive
B. Negative
C. Zero
D. Constant
5 An Increase in temperature generally
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
6 Redox reactions always involve.
A. Gain of protons
B. Transfer of electrons
C. Loss ofneutrons
D. Nuclear change
7 Electroysis is used in the extration of
A. Silver
B. Gold
C. Aluminum
D. Mercury
8 The process of coating a metal with zinc is called.
A. Alloying
B. Galvanization 
C. Electroefining
D. Electrplating
9 Oxidation numebrof oxygen in H2O
A. 1
B. -2
C. 0
D. +1
10 Whcih metal will displace Cu from CuSO4 Solution.
A. Zn
B. Ag
C. Hg
D. Pb

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