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Which of the following is the smallest in size?
Options
(a) Na⁺
(b) F⁻
(c) O²⁻
(d) N³⁻
Correct Answer:
Na⁺
Explanation:
Na⁺ < F⁻ < O²⁻ < N³⁻. All are isoelectronic, effective nuclear charge is highest for Na⁺, so it has smallest size.
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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
- Intermolecular hydrogen bonding is strongest in
- The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³,
- The equation ΔG = ΔH – TΔS is for
- If 0.189g of chlorine containing organic compound gave 0.287g of silver chloride
- What is the entropy change (in J K⁻¹ mol⁻¹) when one mole of ice is converted
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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