Using the data given below find out the strongest reducing agent.
1. Cl-
2. Cr
3. Cr3+
4. Mn2+
Using the data given below find out the strongest oxidizing agent.
1. Cl-
2. Mn2+
3. MnO4-
4. Cr3+
Using the data given above find out in which option the order of reducing power is correct.
1. Cr3+ < Cl- < Mn2+ < Cr
2. Mn2+ < Cl- < Cr3+ < Cr
3. Cr3+ < Cl- < Cr2O72- < MnO4-
4. Mn2+ < Cr3+ < Cl- < Cr
Use the data given above to find out the most stable ion in its reduced form.
1. | Cl- | 2. | Cr3+ |
3. | Cr | 4. | Mn2+ |
The most stable oxidized species among the following is:
\(E_{{\mathrm{Cr}_2 \mathrm{O}_7^2}/ \mathrm{Cr}^{3+}}^{o} =1.33 \mathrm{~V} ; E_{\mathrm{Cl}_2 / \mathrm{Cl}^{-}}^{o}=1.36 \mathrm{~V} \)
\( E_{\mathrm{MnO_{4}}^{-} / \mathrm{Mn}^{2+}}^{o}=1.51 \mathrm{~V} ; E_{\mathrm{Cr}^{3+} / \mathrm{Cr}}^{o}=-0.74 \mathrm{~V}\)
1. | Cr3+ | 2. | MnO4- |
3. | Cr2O72- | 4. | Mn2+ |
The positive value of the standard electrode potential of Cu2+ / Cu indicates that-
(a) | This redox couple is a stronger reducing agent than the H+ /H2 couple |
(b) | This redox couple is a stronger oxidising agent than H+ /H2 |
(c) | Cu can displace H2 from acid. |
(d) | Cu cannot displace H2 from acid. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (b, d)
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. |
Assertion (A): | Copper sulphate can be stored in a zinc vessel. |
Reason (R): | Zinc is less reactive than copper. |
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. |