TN State Board Samacheer Kalvi Online Test for 12th Std - Chemistry - English - Electro Chemistry

Question 1 Of 10

For the cell reaction

– 46.32 KJ mol-1 – 23.16 KJ mol-1 46.32 KJ mol-1 23.16 KJ mor-1

Question 2 Of 10

A current strength of 3.86 A was passed through molten Calcium oxide for 41 minutes and 40 seconds. The mass of Calcium in grams deposited at the cathode is (atomic mass of Ca is 40g / mol and IF = 96500C).

4 2 8 6

Question 3 Of 10

Faradays constant is defined as

charge carried by I electron charge carried by one mole of electrons charge required to deposit one mole of substance charge carried by 6.22 × 1010 electrons

Question 4 Of 10

A gas X at 1 atm is bubble through a solution containing a mixture of 1MY– and 1MZ-1 at 25°C . If the reduction potential of Z > Y> X, then

Y will oxidize X and not Z Y will oxidize Z and not X Y will oxidize both X and Z Y will reduce both X and Z

Question 5 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 6 Of 10

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

5F 3F IF 7F

Question 7 Of 10

The equivalent conductance of M/36 solution of a weak monobasic acid is 6mho cm2 and at infinite dilution is 400 mho cm2. The dissociation constant of this acid is ………….

1.25 x 10-16 6.25 x 10 -6 1.25 x 10-4 6.25 x 10-5

Question 8 Of 10

Assertion: pure iron when heated in dry air is converted with a layer Of rust.

If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. assertion is true but reason is false both assertion and reason are false.

Question 9 Of 10

Conductivity of a saturated solution of a sparingly soluble salt AB (1:1 electrolyte) at 298K is 1.85 x 10-5 S m-1. Solubility product of the saltAB at 298K (Λ0m)AB = 14 x 10-3 S m2 mol-1.

5.7 x 10-2 1.32 x 1012 7.5 x 10-12 1.74 x 10-12

Question 10 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

0.80 1.26 – 0.54 – 10.94

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Chemistry - English Medium - Electro Chemistry

Samacheer Kalvi 12th Chemistry - Electro Chemistry - Book Back Questions in English Medium

Question 1 Of 10

For the cell reaction

Question 2 Of 10

A current strength of 3.86 A was passed through molten Calcium oxide for 41 minutes and 40 seconds. The mass of Calcium in grams deposited at the cathode is (atomic mass of Ca is 40g / mol and IF = 96500C).

Question 3 Of 10

Faradays constant is defined as

Question 4 Of 10

A gas X at 1 atm is bubble through a solution containing a mixture of 1MY– and 1MZ-1 at 25°C . If the reduction potential of Z > Y> X, then

Question 5 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 6 Of 10

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

Question 7 Of 10

The equivalent conductance of M/36 solution of a weak monobasic acid is 6mho cm2 and at infinite dilution is 400 mho cm2. The dissociation constant of this acid is ………….

Question 8 Of 10

Assertion: pure iron when heated in dry air is converted with a layer Of rust.

Question 9 Of 10

Conductivity of a saturated solution of a sparingly soluble salt AB (1:1 electrolyte) at 298K is 1.85 x 10-5 S m-1. Solubility product of the saltAB at 298K (Λ0m)AB = 14 x 10-3 S m2 mol-1.

Question 10 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

Tags

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Chemistry - English Medium - Electro Chemistry

Samacheer Kalvi 12th Chemistry - Electro Chemistry - Book Back Questions in English Medium

Question 1 Of 10

For the cell reaction

Question 2 Of 10

A current strength of 3.86 A was passed through molten Calcium oxide for 41 minutes and 40 seconds. The mass of Calcium in grams deposited at the cathode is (atomic mass of Ca is 40g / mol and IF = 96500C).

Question 3 Of 10

Faradays constant is defined as

Question 4 Of 10

A gas X at 1 atm is bubble through a solution containing a mixture of 1MY– and 1MZ-1 at 25°C . If the reduction potential of Z > Y> X, then

Question 5 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 6 Of 10

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

Question 7 Of 10

The equivalent conductance of M/36 solution of a weak monobasic acid is 6mho cm2 and at infinite dilution is 400 mho cm2. The dissociation constant of this acid is ………….

Question 8 Of 10

Assertion: pure iron when heated in dry air is converted with a layer Of rust.

Question 9 Of 10

Conductivity of a saturated solution of a sparingly soluble salt AB (1:1 electrolyte) at 298K is 1.85 x 10-5 S m-1. Solubility product of the saltAB at 298K (Λ0m)AB = 14 x 10-3 S m2 mol-1.

Question 10 Of 10

Cell equation: A2+ + 2B– → A2+ + 2B

Tags

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.