Select the correct option based on the statements below:
 
Assertion (A): ICI 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 |
 75%
From NCERT
NEET - 2022
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Chlorine shows the bleaching action in the presence of moisture due to the formation of 
1. HOCl 
2. HOClO
3. H2O2
4. O

Subtopic:  Group 17 - Preparation, Properties & Uses |
From NCERT
NEET - 2022
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Fluorine is a stronger oxidizing agent than chlorine because:
(a) F–F bond has a low enthalpy of dissociation.
(b) Flouride ion (F-) has high hydration enthalpy.
(c) Electron gain enthalpy of fluorine is less negative than chlorine.
(d) Fluorine has a very small 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 |
From NCERT
NEET - 2022
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In the light of the below statements, choose the correct answer from the options given below:
I: Acid strength increases in the order given as HF < HCl < HBr < HI.
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. I is correct but II is false.
2. I is incorrect but II is true.
3. Both I and II are true.
4. Both I and II are false.
Subtopic:  Group 17 - Preparation, Properties & Uses |
 79%
From NCERT
NEET - 2021
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The correct structure of tribromo octoxide is:

1.
2.
3.
4.
Subtopic:  Group 17 - Preparation, Properties & Uses |
 71%
From NCERT
NEET - 2019
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Identify the incorrect statement regarding the halogens.
1. All form monobasic oxyacids.
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 |
From NCERT
NEET - 2018
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Choose the pairs of isoelectronic compounds which are isostructural:

1. TeF2, XeF2

2. IBr2-, XeF2

3. IF3, XeF2

4. BeCl2, XeF2

Subtopic:  Group 17 - Preparation, Properties & Uses |
 61%
From NCERT
NEET - 2017
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Among the following, which one is a wrong statement?

1. PH5  and BiCl5  do not exist

2. pπ - dπ bonds are present in SO2

3. SeF4 and CH4  have the same shape

4. \(I_{3}^{+}\) has bent geometry

Subtopic:  Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
 68%
From NCERT
NEET - 2016
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Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
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 |
 72%
From NCERT
NEET - 2016
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Which of the statements given below is incorrect?

1. Cl2O7 is an anhydride of perchloric acid

2. O3 molecule is bent

3. ONF is isoelectronic with NO2-

4. OF2 is an oxide of fluorine

Subtopic:  Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |
 61%
From NCERT
NEET - 2015
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