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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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2K₃[Fe(CN)₆]+H₂O₂+2KOH→2K₄[Fe(CN)₆]
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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
- When conc. H₂SO₄ is added to dry KNO₃,brown fumes are evolved.These fumes are
- The best coagulant for the precipitation of Fe(OH)₃ is
- In the following reaction reducing agent is 2K₃[Fe(CN)₆]+H₂O₂+2KOH→2K₄[Fe(CN)₆]
- The hydrogen ion concentration in mol/dm, in a 0.2 M solution of a weak acid
- The shape of IF₇ molecule is
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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