- 1(current)
Q. No.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 |
69%
Level 2: 60%+
NEET - 2024
Hints
Select the correct option based on the statements below:
| Assertion (A): | ICl is more reactive than I₂. |
| Reason (R): | I-Cl bond is weaker than I-I bond. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False. |
Subtopic: Group 17 - Preparation, Properties & Uses |
73%
Level 2: 60%+
NEET - 2022
Hints
Chlorine shows the bleaching action in the presence of moisture due to the formation of
1. HOCl
2. HOClO
3. H2O2
4. O atom
Subtopic: Group 17 - Preparation, Properties & Uses |
Level 3: 35%-60%
NEET - 2022
Hints
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
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
- 1(current)
Q. No.
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