TN State Board Samacheer Kalvi Online Test for 11th Std - Chemistry - English - Electro Chemistry

Question 1 Of 10

How many faradays of electricity are required for the following reaction to occur

5F 3F IF 7F

Question 2 Of 10

The button cell used in watches function as follows
Zn(s) + Ag2O(s) + H2O(1) ⇌ 2Ag(s) + Zn2+(aq) + 2OH–(aq) the half cell potentials are
Ag2O(s) + H2O(1) + 2e– →2Ag(S) + 2OH–(aq) E° = 034V. The cell potential will be

0.84V 1.34V 1.10V 0.42V

Question 3 Of 10

While charging lead storage battery

PbSO4 on cathode is reduced to Pb PbSO4 on anode is oxidised to PbO4 PbSO4 on anode is reduced to Pb PbSO4 on cathode is oxidised to Pb

Question 4 Of 10

Consider the following half cell reactions:
Mn2+ + 2e– → Mn E° = – 1.18V
Mn2+ → Mn3+ + e– E = – 1.51V
The E for the reaction 3Mn2+ → Mn+2Mn3+, and the possibility of the forward reaction are respectively.

2.69V and spontaneous – 2.69 and non spontaneous 0.33V and Spontaneous 4.18V and non spontaneous

Question 5 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

0.80 1.26 – 0.54 – 10.94

Question 6 Of 10

In H2 – O2 fuel cell the reaction occur at cathode is ……….

O2(g) + 2H2O (l) + 4e– → 4OH–(aq) H+(aq) + OH–(aq) → H2O (l) 2H2(g) + O2(g) → 2H2O (g) H+ + e– → 1/2 H2

Question 7 Of 10

Which of the following electrolytic solution has the least specific conductance?

2N 0.002N 0.02N 0.2N

Question 8 Of 10

The number of electrons that have a total charge of 9650 coulombs is ………..

6.22 × 1023 6.022 × 1024 6.022 × 1022 6.022 × 10-34

Question 9 Of 10

During electrolysis of molten sodium chloride, the time required to produce 0.1 mol of chlorine gas using a current of 3A is ………..

55 minutes 107.2 minutes 220 minutes 330 minutes

Question 10 Of 10

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

Br2 BrO4– BrO3– HBrO

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Chemistry - English Medium - Electro Chemistry

Samacheer Kalvi 11th Chemistry - Electro Chemistry - Book Back Questions in English Medium

Question 1 Of 10

How many faradays of electricity are required for the following reaction to occur

Question 2 Of 10

The button cell used in watches function as follows
Zn(s) + Ag2O(s) + H2O(1) ⇌ 2Ag(s) + Zn2+(aq) + 2OH–(aq) the half cell potentials are
Ag2O(s) + H2O(1) + 2e– →2Ag(S) + 2OH–(aq) E° = 034V. The cell potential will be

Question 3 Of 10

While charging lead storage battery

Question 4 Of 10

Consider the following half cell reactions:
Mn2+ + 2e– → Mn E° = – 1.18V
Mn2+ → Mn3+ + e– E = – 1.51V
The E for the reaction 3Mn2+ → Mn+2Mn3+, and the possibility of the forward reaction are respectively.

Question 5 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

Question 6 Of 10

In H2 – O2 fuel cell the reaction occur at cathode is ……….

Question 7 Of 10

Which of the following electrolytic solution has the least specific conductance?

Question 8 Of 10

The number of electrons that have a total charge of 9650 coulombs is ………..

Question 9 Of 10

During electrolysis of molten sodium chloride, the time required to produce 0.1 mol of chlorine gas using a current of 3A is ………..

Question 10 Of 10

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

Tags

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Chemistry - English Medium - Electro Chemistry

Samacheer Kalvi 11th Chemistry - Electro Chemistry - Book Back Questions in English Medium

Question 1 Of 10

How many faradays of electricity are required for the following reaction to occur

Question 2 Of 10

The button cell used in watches function as follows Zn(s) + Ag2O(s) + H2O(1) ⇌ 2Ag(s) + Zn2+(aq) + 2OH–(aq) the half cell potentials are Ag2O(s) + H2O(1) + 2e– →2Ag(S) + 2OH–(aq) E° = 034V. The cell potential will be

Question 3 Of 10

While charging lead storage battery

Question 4 Of 10

Consider the following half cell reactions: Mn2+ + 2e– → Mn E° = – 1.18V Mn2+ → Mn3+ + e– E = – 1.51V The E for the reaction 3Mn2+ → Mn+2Mn3+, and the possibility of the forward reaction are respectively.

Question 5 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

Question 6 Of 10

In H2 – O2 fuel cell the reaction occur at cathode is ……….

Question 7 Of 10

Which of the following electrolytic solution has the least specific conductance?

Question 8 Of 10

The number of electrons that have a total charge of 9650 coulombs is ………..

Question 9 Of 10

During electrolysis of molten sodium chloride, the time required to produce 0.1 mol of chlorine gas using a current of 3A is ………..

Question 10 Of 10

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

Tags

The button cell used in watches function as follows
Zn(s) + Ag2O(s) + H2O(1) ⇌ 2Ag(s) + Zn2+(aq) + 2OH–(aq) the half cell potentials are
Ag2O(s) + H2O(1) + 2e– →2Ag(S) + 2OH–(aq) E° = 034V. The cell potential will be

Consider the following half cell reactions:
Mn2+ + 2e– → Mn E° = – 1.18V
Mn2+ → Mn3+ + e– E = – 1.51V
The E for the reaction 3Mn2+ → Mn+2Mn3+, and the possibility of the forward reaction are respectively.