Assertion (A): | Copper sulphate solutions can be store in a zinc pot. |
Reason (R): | Zinc is more 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. | (A) is false but (R) is true. |
The metals among the following that can be extracted electrolytically is -
1. K
2. Na
3. Al
4. All of the above