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Which one of the following ionic species has the greatest proton affinity to form stable compound?
Options
(a) NH₂⁻
(b) F⁻
(c) I⁻
(d) HS⁻
Correct Answer:
NH₂⁻
Explanation:
Proton affinity decreases in moving across the period from left to right due to increase in charge, within a group the proton affinities decreases from top to bottom. Nitrogen family > Oxygen family > Halogens
Related Questions: - If 1,3-dibromopropane reacts with Zinc and Nal ,the product obtained is
- A buffer solution contains 0.1 M of acetic acid and 0.1 M of sodium acetate.
- At room temperature the eclipsed and staggered forms of ethane can not be isolate
- The standard emf of galvanic cell involving 3 moles of electrons in its redox
- What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL
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
- If 1,3-dibromopropane reacts with Zinc and Nal ,the product obtained is
- A buffer solution contains 0.1 M of acetic acid and 0.1 M of sodium acetate.
- At room temperature the eclipsed and staggered forms of ethane can not be isolate
- The standard emf of galvanic cell involving 3 moles of electrons in its redox
- What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL
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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