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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: - The reaction between an alkyl halide and an alkoxide ion to give an ether is
- Geometrical isomerism is possible in
- Which of the following will be most stable diazonium salt RN₂⁺ X⁻
- If 300 mL of a gas at 27⁰ C is cooled to 7⁰C at constant pressure, its final volume
- If electron has spin quantum number +1/2 and magnetic quantum number –1,it cannot
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
- The reaction between an alkyl halide and an alkoxide ion to give an ether is
- Geometrical isomerism is possible in
- Which of the following will be most stable diazonium salt RN₂⁺ X⁻
- If 300 mL of a gas at 27⁰ C is cooled to 7⁰C at constant pressure, its final volume
- If electron has spin quantum number +1/2 and magnetic quantum number –1,it cannot
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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