1. | Fluorine is stronger oxidising agent than chlorine. |
2. | Fluorine is weaker oxidising agent than chlorine. |
3. | Fluorine is stronger reducing agent than chlorine. |
4. | Bond dissociation energy of fluorine is more than chlorine. |
Sea is the greatest source of :
1. Halogens.
2. Noble gases.
3. Alkaline earth metals.
4. Chalcogens.
Assertion (A): | ICl is more reactive than I2 . |
Reason (R): | I−Cl bond in ICl is weaker than I−I bond in I2 |
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 gas used in diving apparatus is-
1. He
2. SO2
3. Neon
4. O3
1. | It is a radioactive substance. |
2. | It is a very stable substance. |
3. | Half-life of Radon is longer. |
4. | It forms variety of compounds. |