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For electron affinity of halogens, which of the following is correct?
Options
(a) Br > F
(b) F > Cl
(c) Br > Cl
(d) F > I
Correct Answer:
F > I
Explanation:
The order of electron affinity is
Cl > F > Br > I
Usually this affinity decreases on moving down in a group with increase in size. But ∑A of elmts of III period > II period, because elmts of II period have small size and greater elctrn density so, incoming elctrns suffer a repulsive force.
Related Questions: - Cobalt(III) chloride forms several octahedral complexes with ammonia.
- The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are
- During change of O₂ to O₂⁻ ion, the electron adds on which one of the following
- Permanent hardness of water is due to the presence of
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Cobalt(III) chloride forms several octahedral complexes with ammonia.
- The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are
- During change of O₂ to O₂⁻ ion, the electron adds on which one of the following
- Permanent hardness of water is due to the presence of
- Pyruvic acid is obtained by
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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