| ⇦ | 
| ⇨ |
Which of the following orders of ionic radii is correctly represented
Options
(a) H⁻ > H⁺ > H
(b) Na⁺ > F⁻ > O²⁻
(c) F⁻ > O²⁻ > Na⁺
(d) Al³⁺ > Mg²⁺ > N³⁻
Correct Answer:
none
Explanation:
Cations lose electrons and are smaller in size than the parent atom whereas anions add electrons and are larger in size than the parent atom. Hence the order is H⁻ >H>H⁺.
For isoelectronic species the ionic radii decreases with increase in atomic number i.e nuclear charge.
Hence the correct orders are O²⁻>F⁻>Na⁺ and N³⁻>Mg²⁺>Al³⁺
Related Questions: - Square planar complex of the type MABXL(where A,B,X and L are unidentates) show
- The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy
- Chloroamphenicol is effective against
- The oxidation state of halogen atom is ‘+3’ in
- At what pressure a gas, which occupies 100 mL at a pressure of 720 mm
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Square planar complex of the type MABXL(where A,B,X and L are unidentates) show
- The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy
- Chloroamphenicol is effective against
- The oxidation state of halogen atom is ‘+3’ in
- At what pressure a gas, which occupies 100 mL at a pressure of 720 mm
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