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Which one of the following ions will be the smallest in size?
Options
(a) Na⁺
(b) Mg²⁺
(c) F⁻
(d) O₂⁻
Correct Answer:
Mg²⁺
Explanation:
Greater is the positive charge on atom, large is effective nuclear charge. Hence smaller is the size
Related Questions: - For a first order reaction, the time taken to reduce the initial concentration
- In the following reaction reducing agent is
2K₃[Fe(CN)₆]+H₂O₂+2KOH→2K₄[Fe(CN)₆]
- An organic compound ‘X’ having molecular formula C₅H₁₀O yields phenyl hydrozone
- In which of the following, the entropy decreases
- During a redox titration involving a solution containing Fe²⁺ ions against MnO₄⁻
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
- For a first order reaction, the time taken to reduce the initial concentration
- In the following reaction reducing agent is 2K₃[Fe(CN)₆]+H₂O₂+2KOH→2K₄[Fe(CN)₆]
- An organic compound ‘X’ having molecular formula C₅H₁₀O yields phenyl hydrozone
- In which of the following, the entropy decreases
- During a redox titration involving a solution containing Fe²⁺ ions against MnO₄⁻
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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