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 |
 75%
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NEET - 2022
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Given below are two statements: 

Assertion (A): Fluorine exhibits only –1 oxidation state whereas other halogens exhibit + 1, + 3, + 5 and + 7 oxidation states.
Reason (R): Other halogens have d orbitals and therefore, can expand their octets and show +1, +3, +5 and +7 oxidation states also.


 

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 |
 91%
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Given below are two statements: 

Assertion (A): Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine is a stronger oxidising agent than chlorine.
Reason (R): F2 has low enthalpy of dissociation and F has high hydration enthalpy


The correct option is-

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 |
 77%
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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 |
 65%
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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:  Group 17 - Preparation, Properties & Uses |
 85%
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Select the correct option based on statements below:
Assertion (A): HI cannot be prepared by the reaction of KI with concentrated H2SO4.
Reason (R): HI has the lowest H—X bond strength among halogen acids.
  
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 | Group 16 - Preparation, Properties & Uses |
 51%
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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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Which of the following statements are correct?

a. Among halogens, the radius ratio between iodine and fluorine is maximum.
b. Leaving F — F bond, all halogens have weaker X — X bond than X — X' bond in interhalogens.
c. Among interhalogen compounds a maximum number of atoms are present in iodine fluoride.
d. Interhalogen compounds are more reactive than halogen compounds.

1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)

Subtopic:  Group 17 - Preparation, Properties & Uses |
 68%
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With respect to halogens, four statements are given below

(I) The bond dissociation energies for halogens are in the order: l2 < F2 < Br2 < Cl2

(II) The only oxidation state is —1

(III) The amount of energy required for the excitation of electrons to the first excited state decreases progressively as we move from F to l

(IV) They form HX2- species in their aqueous solutions (X = halogen)

The correct statements are

1.  I, II, IV

2.  I, III, IV

3.  II, III, IV

4.  I, III

Subtopic:  Group 17 - Preparation, Properties & Uses |
 57%
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Match the substance given in Column I with the application given in Column II and mark the appropriate option:

Column I (Substance) Column II (Application)
A. Liquid helium (i) Chlorinating agent
B. Argon (ii) Inert atmosphere (metallurgy)
C. PCl5 (iii) Cryogenics
D.  P4O10 (iv) Dehydrating agent 
 
A B C D
1. (iii) (ii) (i) (iv)
2. (iii) (iv) (i) (ii)
3. (ii) (iii) (i) (iv)
4. (ii) (iv) (i) (iii)
Subtopic:  Group 17 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
 78%
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