| ⇦ | 
| ⇨ |
Identify the correct order of the size of the following elements: Ca, K, Ar,Cl,S
Options
(a) Ca²⁺< K⁺< Ar < Cl⁻ < S²⁻
(b) Ar < Ca²⁺< K⁺< Cl⁻< S²⁻
(c) Ca²⁺< Ar < K⁺< Cl⁻ < S²–
(d) Ca²⁺< K⁺< Ar < S²⁻ < Cl⁻
Correct Answer:
Ca²⁺< K⁺< Ar < Cl⁻ < S²⁻
Explanation:
For isoelectronic species, size of anionincreases as negative charge increaseswhereas size of cation decreases withincrease in positive charge. Further ionic radiiof anions is more than that of cations
Related Questions: - 1.0g of magnesium is burnt with 0.56 g O₂ in a closed vessel
- Which of the following pairs of substance on reaction will not evolve H₂ gas
- Gas A is bubbled through slacked lime, a white precipitate is formed.
- The screening effect of d-electrons is
- Which of the following is used in electroplating
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
- 1.0g of magnesium is burnt with 0.56 g O₂ in a closed vessel
- Which of the following pairs of substance on reaction will not evolve H₂ gas
- Gas A is bubbled through slacked lime, a white precipitate is formed.
- The screening effect of d-electrons is
- Which of the following is used in electroplating
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
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply