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Identify the false statement among the following about the halogens:
1. All form monobasic oxyacids(except HOF).
2. All are oxidizing agents.
3. All but fluorine show positive oxidation states.
4. Chlorine has the highest electron-gain enthalpy.
2. All are oxidizing agents.
3. All but fluorine show positive oxidation states.
4. Chlorine has the highest electron-gain enthalpy.
Subtopic: Group 17 - Preparation, Properties & Uses |
Level 4: Below 35%
NEET - 2018
Hints
The correct order of the bond dissociation enthalpy of halogen molecules is:
1. Cl2 > Br2 > F2 > l2
2. Br2 > l2 > F2 > Cl2
3. F2 > Cl2 > Br2 > l2
4. l2 > Br2 > Cl2 > F2
1. Cl2 > Br2 > F2 > l2
2. Br2 > l2 > F2 > Cl2
3. F2 > Cl2 > Br2 > l2
4. l2 > Br2 > Cl2 > F2
Subtopic: Group 17 - Preparation, Properties & Uses |
79%
Level 2: 60%+
NEET - 2016
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: Group 17 - Preparation, Properties & Uses |
66%
Level 2: 60%+
Hints
Links
Fluorine is known to be a stronger oxidizing agent than chlorine. Which of the following thermodynamic factors is the primary reason for this behavior?
| (a) |
The F–F bond has a low bond dissociation enthalpy. |
| (b) |
The fluoride ion (F⁻) has a high hydration enthalpy in aqueous solution. |
| (c) | The electron gain enthalpy of fluorine is less negative than that of chlorine. |
| (d) | Fluorine has a very small atomic size. |
Choose the most appropriate answer from the options given :
| 1. | (a) and (b) only | 2. | (a) and (c) only |
| 3. | (a) and (d) only | 4. | (b) and (c) only |
Subtopic: Group 17 - Preparation, Properties & Uses |
Level 3: 35%-60%
NEET - 2022
Hints
Why does fluorine not produce oxyacids?
1. It is most electronegative
2. It is the most powerful oxidising agent
3. It has vacant d- orbitals
4. None of the above
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |
56%
Level 3: 35%-60%
Hints
Subtopic: Group 17 - Preparation, Properties & Uses |
71%
Level 2: 60%+
Hints
In the light of the below statements, choose the correct answer from the options given below:
| Statement I: | Acid strength increases in the order given as HF < HCl < HBr < HI. |
| Statement II: | As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCI, HBr, and HI decreases and so the acid strength increases. |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Group 17 - Preparation, Properties & Uses |
82%
Level 1: 80%+
NEET - 2021
Hints
Identify the incorrect statement from the following:
| 1. | The acidic strength of HX (X=F, Cl, Br and I) follows the order: HF > HCI > HBr >HI |
| 2. | Fluorine exhibits - 1 oxidation state whereas other halogens exhibit +1, +3, +5 and +7 oxidation states also. |
| 3. | The enthalpy of dissociation of F2 is smaller than that of Cl2. |
| 4. | Fluorine is stronger oxidising agent than chlorine. |
Subtopic: Group 17 - Preparation, Properties & Uses |
70%
Level 2: 60%+
NEET - 2024
Hints
Subtopic: Group 17 - Preparation, Properties & Uses |
57%
Level 3: 35%-60%
Hints
Which of the following statements is true?
1 SO2 bleaches by reduction.
2 Cl2 bleaches by oxidation.
3 O3 bleaches by oxidation.
4 All of the above.
Subtopic: Group 17 - Preparation, Properties & Uses |
85%
Level 1: 80%+
Hints
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