Electrochemistry Test

Result

Electrochemistry Test - 36

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

A
10^{‒ 37}

B
10³⁷

C
10^‒17

D
10¹⁷

Solution
Question 2
4 / -1

Calculate the standard free energy change for the reaction,
2Ag + 2H⁺ → H₂ + 2Ag⁺, E^o for Ag⁺ + e^‒ → Ag is 0.80 V.

A
+ 154.4 kJ

B
+ 308.8 kJ

C
‒ 154.4 kJ

D
‒ 308.8 kJ

Solution
Question 3
4 / -1

A
2.14 V

B
4.28 V

C
6.42 V

D
8.56 V

Solution
Question 4
4 / -1

An electrochemical cell is set up as follows:
Pt (H₂, 1 atm.) |0.1MHCl | 0.1M Acetic Acid| (H₂ ,1atm.) pt.
E.M.F. of this cell will not be zero because

A
The pH of 0.1 MHCl and 0.1 M acetic acid is not the same

B
Acids used in the two compartments are different

C
E.M.F of a cell depends on the molarities of acid used

D
The temperature is constant
Question 5
4 / -1

Which of the following is incorrect about transport number?

A
it decreases with increase in concentration

B
it may increase or decrease with increase in temperature

C
it is never zero

D
it is different for Cl^- ion in 0.1 MHCl and 0.1 M NaCl solution
Question 6
4 / -1

Equal quantities of electricity are passed through three voltameters containing FeSO₄, Fe₂(SO₄)₃ and Fe(NO₃)₃ Consider the following statements in this regard:
1. The amount of iron deposited in FeSO₄ and Fe₂ (SO₄)₃ are equal.
2. The amount of iron deposited in Fe(NO₃)₃ is two third of the amount of iron deposited in FeSO₄
3. The amount of iron deposited in Fe₂(SO₄)₃ and Fe(NO₃)₃ is equal of these statements

A
1 alone is correct

B
1 and 2 are correct

C
2 and 3 are correct

D
3 alone is correct
Question 7
4 / -1

If the oxidation potential be defined with reference to Ag/ Ag⁺ half cell ( for which oxidation potential is taken to be zero), which of the following will give the correct value of oxidation potential of 2 Cu/Cu⁺ half cell (Given that Cu/Cu²⁺ = ‒ 0.34 V and Ag/Ag⁺ = ‒ 0.80 V)

A
‒ 0.46 volts

B
‒ 1.14 volts

C
1.14 volts

D
0.46 volts

Solution
Question 8
4 / -1

The standard reduction potential for Cu²⁺/Cu is + 0.34V. The reduction potential at pH = 14 for the above couple is {[Cu²⁺] at pH 14 is 10^-19}

A
‒ 0.22 V

B
+ 0.22V

C
‒ 0.34 V

D
+ 0.34V

Solution
Question 9
4 / -1

A
OA

B
OB

C
OC

D
OD

Solution
Question 10
4 / -1

The reduction potential of hydrogen half- cell will be negative if

A
p (H₂) = 1 atm and [H⁺ ]= 1 M

B
p (H₂) = 1 atm and [H⁺]= 2 M

C
p (H₂) 2 atm and [H⁺] = 1 M

D
p(H₂) = 2 atm and [H⁺] = 2 M

Solution