Chemistry Chapter 10 Electrochemistry Mcqs Test Online Punjab Class 11th

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Question 1 of 12

Chemistry

1. Which of these is not true of an electrolyte.

It can conduct electricity in molten state

It can conduct electricity in the solid form

It can be an acid, a base or a salt

It can conduct electricity in the form of aqueous solution

Question 1 of 12

Question 2 of 12

2. A fuel call operates at ________ temperature

Room

Medium

Low

High

Question 2 of 12

Question 3 of 12

3. The passage of current through an electrolyte is due to the movement of

Electrons

Ions

Anions

Cations

Question 3 of 12

Question 4 of 12

4. The electrode through which the electron enter the electrolytic solution is

Electrolyte

Anode

Salt bridge

Cathode

Question 4 of 12

Question 5 of 12

5. In the electrolysis of molten ZnCl₂, the cathode reaction is Zn⁺² + 2e⁻ → Zn what quantity of electricity is used up for the production of half mole of Zn

1F

2 Coulombs

2 ampere

2F

Question 5 of 12

Question 6 of 12

6. In which of the following compounds oxidation number of N is +5

NO₂

N₂O₃

N₂O₄

N₂O₅

Question 6 of 12

Question 7 of 12

7. E⁰_sn = -0.14V, E⁰_pb = -013V

Sn⁺² can oxidize Pb

Both can oxidize each other

Both can reduce each other

Pb⁺² can oxidize Sn

Question 7 of 12

Question 8 of 12

8. Oxidation number of S in Na₂S₂O₃ is

+1

+2

+3

+4

Question 8 of 12

Question 9 of 12

9. Oxidation number of an element in Free state is

± 1

Negative

Zero

Positive

Question 9 of 12

Question 10 of 12

10. The oxidation number of Cl in HCIO₂ is

-1

+1

+7

+5

Question 10 of 12

Question 11 of 12

11. In an electrolytic cell, the name of electrode which has more negative potential begins with the letter

C to D

K to O

U to Z

A to B

Question 11 of 12

Question 12 of 12

12. How many moles of Cr will be produced by 1.5 Faradays of electricity by the following reaction Cr⁺³ + 3e⁻ → Cr

0. 2

0. 03

0. 1

0. 5

Question 12 of 12

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