Standard reduction potentials at 25°C of Li+/Li, Ba2+/Ba, Na+/Na and Mg2+/Mg are -3.05, -2.90, -2.71 and -2.37 V respectively. Which one of the following is the strongest oxidising agent ?

1. Mg2+

2. Ba2+

3. Na+

4. Li+

Subtopic:  Electrode & Electrode Potential |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Equivalent conductances of NaCl, HCl and C2H5COONa at infinite dilution are 126.45, 426.16 and 91 Ω-1cm2. The equivalent conductance of C2H5COOH is : 

1. 201.28 Ω-1cm2

2. 390.71 Ω-1cm2

3. 698.28 Ω-1cm2

4. 540.48 Ω-1cm2

Subtopic:  Conductance & Conductivity |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When an electric current is passed through acidulated water, 112 mL of hydrogen gas at STP collects at the cathode in 965 second. The current passed, in ampere is:

1. 1.0

2. 0.5

3. 0.1

4. 2.0

Subtopic:  Faraday’s Law of Electrolysis |
 57%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The electric charge for electrode deposition of 1g equivalent of a substance is:

1. 1 ampere per second

2. 96,500 coulomb per second

3. 1 ampere for 1 hour

4. charge on 1 mole of electrons

Subtopic:  Faraday’s Law of Electrolysis |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The change in reduction potential of a hydrogen electrode when its solution initialy at pH = 0 is neutralised to pH = 7, is a/an-

1. Increase by 0.059 V 2. Decrease by 0.059 V
3. Increase by 0.41 V 4. Decrease by 0.41 V
Subtopic:  Electrode & Electrode Potential | Nernst Equation |
 52%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

 The cell reaction for the given cell is spontaneous if:

Ptcl2|cl-(1M)||Cl-(1M)|PtCl2

1. P1 > P2 

2. P1 < P2

3. P1 = P2

4. P1 = 1 atm

Subtopic:  Electrode & Electrode Potential |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Each of the three metals X, Y and Z were put in turn into aqueous solution of the other two.

X + Salt of Y (or Z)   Y (or Z) + Salt of X.

Which observation is probably incorrect?

1. Y + Salt of X = No action observed

2. Y + Salt of Z = Z + Salt of Y

3. Z + Salt of X = X + Salt of Z

4. Z + Salt of Y = No action observed

Subtopic:  Electrochemical Series |
 59%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The standard reduction potentials of Cu2+/Cu and Cu2+/Cu+ are 0.337 and 0.153V respectively. The standard electrode potential of Cu+/Cu half cell is:

1. 0.184V 

2. 0.827V

3. 0.521V

4. 0.490V

Subtopic:  Electrode & Electrode Potential |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When a lead storage battery is discharged, then:

1. SO2 is evolved.

2. Lead is formed.

3. Lead sulphate is consumed.

4. Sulphuric acid is consumed.

Subtopic:  Batteries & Salt Bridge |
 58%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The ratio of masses of hydrogen and magnesium deposited by the same amount of electricity from H2SO4 and MgSO4 in aqueous solution are:

1. 1:8

2. 1:12

3. 1:16

4. none of these

Subtopic:  Faraday’s Law of Electrolysis |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh