# The resistance of a cell containing 0.001 M KCl solution at 298 K is 1500 Ω. The conductivity is 0.146 × 10–3 S cm–1. The cell constant would be-

Subtopic:   Kohlrausch Law & Cell Constant |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The amount of charge required for the reduction of 1 mol of ${\mathrm{MnO}}_{4}^{-}$ to ${\mathrm{Mn}}^{2+}$ is -

2. 3.2 × 106 C
3. 1.8 × 105 C
4. 4.1 × 104 C

Subtopic:  Faraday’s Law of Electrolysis |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The number of Faradays required to produce 20.0 g of Ca from molten CaCl2 is-

1. 2F

2. 1F

3. 4F

4. 3F

Subtopic:  Faraday’s Law of Electrolysis |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

Three electrolytic cells A, B, C containing solutions of ZnSO4, AgNO3, and CuSO4, respectively are connected in series. A steady current of 1.5 amperes was passed through them until 1.45 g of silver was deposited at the cathode of cell B. The current flow time is-

1. 14 minutes

2. 25 minutes

3. 20 minutes

4. 11 minutes

Subtopic:  Faraday’s Law of Electrolysis |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The conductivity of 0.00241 M acetic acid is 7.896 × 10–5 S cm–1. If ${\mathrm{\Lambda }}_{\mathrm{m}}^{0}$ for acetic acid is 390.5 S cm2 mol–1, the dissociation constant will be -

$$1. \ 2.45 \times 10^{-5} \mathrm{~mol} \ \mathrm{~L}^{-1} \\ 2. \ 1.86 \times 10^{-5} \mathrm{~mol} \ \mathrm{L^{-1}} \\ 3. \ 3.72 \times 10^{-5}\mathrm{~mol} \mathrm{~L^{-1}} \\ 4. \ 2.12 \times 10^{-5}\mathrm{~mol} \mathrm{~L^{-1}}$$

Subtopic:  Conductance & Conductivity |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The correct increasing order of reducing power of the metals is:

 K+/K = –2.93 V Ag+/Ag = 0.80 V Hg2+/Hg = 0.79 V Mg2+/Mg = –2.37 V Cr3+/Cr = – 0.74 V

1. Cr < Mg < K < Ag < Hg

2. Mg < K < Ag < Hg < Cr

3. K < Ag < Hg < Cr < Mg

4. Ag < Hg < Cr < Mg < K

Subtopic:  Electrode & Electrode Potential |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The correct statement about the given galvanic cell equation is -

Zn(s) + 2Ag+­­­(aq) → Zn2+(aq) + 2Ag(s)

 1 The current will flow from silver to zinc in the external circuit. 2 The current will flow from zinc to silver in the external circuit. 3 The current will flow from silver to zinc in the internal circuit. 4 The current will flow from zinc to silver in the internal circuit.

Subtopic:  Electrolytic & Electrochemical Cell |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

2Cr(s) + 3Cd2+(aq)  2Cr3+(aq) + 3Cd

The value of $∆{\mathrm{G}}_{r}^{\mathrm{o}}$ in the above reaction will be -

1. -196.83 kJ

2. 196.83 kJ

3. 186.83 kJ

4. -186.83 kJ

Subtopic:  Relation between Emf, G, Kc & pH |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The incorrect statement(s) among the below is/are:

 a. The unit of conductivity is S cm-2 b. Specific Conductivity of weak and strong electrolytes always decreases with a decrease in concentration. c. The unit of molar conductivity is S cm2 mol-1 d. Molar conductivity increases with an increase in concentration.

1. a

2. a and d

3. b and d

4. a and c

Subtopic:  Conductance & Conductivity |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. The molar conductivity will be -

1. 124 S cm2 mol-1

2. 134 S cm2 mol-1

3. 128 S cm2 mol-1

4. 136 S cm2 mol-1

Subtopic:  Conductance & Conductivity |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot