The electrode potential for Mg electrode varies according to the equation
\(E_{Mg^{2+}/Mg}\ = \ E_{Mg^{2+}/Mg}^{o} \ - \ \frac{0.059}{2}log\frac{1}{[Mg^{2+}]}\)
The graph of EMg2+ / Mg vs log [Mg2+] among the following is:
1. | 2. | ||
3. | 4. |
Match the terms given in Column I with the units given in Column II.
Column I |
Column II |
||
A. | 1. |
S cm–1 |
|
B. | Ecell | 2. | m–1 |
C. | κ | 3. | S cm2 mol–1 |
D. | G* | 4. | V |
Codes:
Options: | A | B | C | D |
1. | 3 | 4 | 1 | 2 |
2. | 1 | 2 | 3 | 5 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 3 | 2 |
Match the items of Column I and Column II.
Column I |
Column II |
A. B. C. D. Q |
1. I x t 2. 3. 4. |
Codes:
Options: | A | B | C | D |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 5 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 3 | 2 | 1 |
Match the items of Column I and Column II on the basis of data given below
Column I | Column II | ||
A | F2 | 1. | Metal is the strongest reducing agent |
B | Li | 2. | Metal ion which is the weakest oxidising agent |
C | Au3+ | 3. | Non-metal which is the best oxidising agent |
D | Br– | 4. | Unreactive metal |
E | Au | 5 | Anion that can be oxidised by Au3+ |
F | Li+ | 6 | Anion which is the weakest reducing agent |
G | F– | 7 | Metal ion which is an oxidising agent |
Options: | A | B | C | D | E | F | G |
1. | 3 | 1 | 7 | 5 | 4 | 2 | 6 |
2. | 1 | 2 | 3 | 5 | 7 | 4 | 6 |
3. | 5 | 4 | 3 | 2 | 6 | 5 | 1 |
4. | 4 | 5 | 3 | 2 | 1 | 6 | 7 |
Given below are two statements:
Assertion (A): | Cu is less reactive than hydrogen. |
Reason (R): | E°Cu2+/ Cu is negative. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Given below are two statements:
Assertion (A): | Ecell should have a positive value for the cell to function. |
Reason (R): | Ecathode < Eanode |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Given below are two statements:
Assertion (A): | Conductivity of all electrolytes decreases on dilution. |
Reason (R): | On dilution number of ions per unit volume decreases. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Assertion (A): | Λm for weak electrolytes shows a sharp increase when the electrolytic solution is diluted. |
Reason (R): | For weak electrolytes degree of dissociation increases with a dilution of the solution. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | Mercury cell does not give steady potential. |
Reason (R): | In the cell reaction, ions are not involved in the solution. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Given below are two statements:
Assertion (A): | Electrolysis of NaCl solution gives chlorine at anode instead of O2 . |
Reason (R): | Formation of oxygen at anode requires overvoltage. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |