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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
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- What is the composition of tear gas
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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
- If the value of an equilibrium constant for a particular reaction is 1.6 ˣ 10¹²,
- What is the composition of tear gas
- The change in oxidation state of sulphur when sulphur dioxide is passed
- Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
- If n = 6, the correct sequence for filling of electrons will be:
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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