| ⇦ | 
| ⇨ |
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: - Thomas slag is
- The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy
- Which of the following statement regarding hydrogen peroxide is false
- Coordination number of Zn in ZnS (zinc blende) is
- At equilibrium, the value of change in Gibb’s free energy (ΔG) 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
- Thomas slag is
- The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy
- Which of the following statement regarding hydrogen peroxide is false
- Coordination number of Zn in ZnS (zinc blende) is
- At equilibrium, the value of change in Gibb’s free energy (ΔG) 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
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