The most stable oxidized species among the following is:
1. | Cr3+ | 2. | MnO4- |
3. | Cr2O72- | 4. | Mn2+ |
1. | Cu & Zn2+ | 2. | Zn & Cu |
3. | Cu2+ & Zn2+ | 4. | Cu2+ & Zn |
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. |