- 1(current)
Q. No.Select the correct option based on the statements below:
| Assertion (A): | NaCl reacts with concentrated H2SO4 to give colourless fumes with a pungent smell. But on adding MnO2, the fumes become greenish-yellow. |
| Reason (R): | MnO2 oxidizes HCl to chlorine gas which is greenish-yellow. |
| 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. |
Subtopic: Â Group 17 - Preparation, Properties & Uses |
 85%
Level 1: 80%+
Hints
Incorrect order among the following is:
| 1. | F2 > Cl2 > Br2 > I2 | Oxidising power |
| 2. | F < Cl > Br > I | Electron gain enthalpy |
| 3. | F2 > Cl2 > Br2 > I2 | Bond dissociation energy |
| 4. | F> Cl > Br > I | Electronegativity |
Subtopic: Â Group 17 - Preparation, Properties & Uses |
 79%
Level 2: 60%+
AIPMT - 2008
Hints
Links
Select the correct option based on statements below:
| Assertion (A): | The atomic size of F is smaller than that of Cl. |
| Reason (R): | F-F bond is stronger than the Cl-Cl bond. |
| 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. |
Subtopic: Â Group 17 - Preparation, Properties & Uses |
 66%
Level 2: 60%+
Hints
Links
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What order does the stability of interhalogen compounds follow?
1. IF3 > BrF3 > CIF3
2. BrF3 > IF3 > ClF3
3. ClF3 > BrF3 > IF3
4. ClF3 > IF3 > BrF3
Subtopic: Â Group 17 - Preparation, Properties & Uses |
 57%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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