Match List I with List II.
 List I (Conversion) List II (Number of Faraday required) A. 1 mol of H2O to O2 I. 3F B. 1 mol of $$MnO^-_4$$ to $$Mn^{2+}$$ II. 2F C. 1.5 mol of $$Ca$$ from molten $$CaCl_2$$ III. 1F D. 1 mol of FeO to Fe2O3 IV. 5F
Choose the correct answer from the options given below:
1. A - III, B - IV, C - I, D - II
2. A - II, B - III, C - I, D - IV
3. A - III, B - IV, C - II, D - I
4. A - II, B - IV, C - I, D - III
Subtopic:  Faraday’s Law of Electrolysis |
60%
From NCERT
NEET - 2024
Hints

Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate for 100 seconds is(Given : Molar mass of Cu: $$63 g mol^{-1}$$ F = 96487 C)

1. 0.315 g
2. 31.5 g
3. 0.0315 g
4. 3.15 g
Subtopic:  Faraday’s Law of Electrolysis |
63%
From NCERT
NEET - 2024
Hints

Given below are two statements:
 Statement I: $$2 \mathrm{~F}$$ electricity is required for the oxidation of 1 mole $$\mathrm{H}_2 \mathrm{O}$$ to $$\mathrm{O}_2$$. Statement II: To get $$40.0 \mathrm{~g}$$ of Aluminium from molten $$\mathrm{Al}_2 \mathrm{O}_3$$ required electricity is $$4.44 \mathrm{~F}$$.

In the light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic:  Faraday’s Law of Electrolysis |
59%
From NCERT
NEET - 2024
Hints

The three cells with their $$E^\circ_{\text{(cell)}}$$ values are given below:

 Cells $$E^\circ_{\text{(cell)}}/V$$ (a) Fe|Fe2+||Fe3+|Fe 0.404 (b) Fe|Fe2+||Fe3+, Fe2+|Pt 1.211 (c) Fe|Fe3+||Fe3+, Fe2+|Pt 0.807
The standard Gibbs free energy change values for three cells are, respectively:
(F represents the charge on 1 mole of electrons.)

 1 –1.212 F, –1.211 F, –0.807 F 2 +2.424 F, +2.422 F, +2.421 F 3 –0.808 F, –2.422 F, –2.421 F 4 –2.424 F, –2.422 F, –2.421 F
Subtopic:  Faraday’s Law of Electrolysis |
56%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The number of Faradays (F) required to produce 20 g of calcium from molten CaCl2 (Atomic mass of Ca = 40 g mol–1) is:

1. 2

2. 3

3. 4

4. 1

Subtopic:  Faraday’s Law of Electrolysis |
68%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch