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For alkali metals, which one of the following trends is incorrect
Options
(a) Hydration energy: Li > Na > K > Rb
(b) Ionization energy: Li > Na > K > Rb
(c) Density: Li< Na < K < Rb
(d) Atomic size: Li < Na < K < Rb
Correct Answer:
Density: Li< Na < K < Rb
Explanation:
Density gradually increases on moving down from Li to Cs. Potassium is, however, lighter than sodium. The abnormal value of potassium is due to unusual increase in atomic size, i.e., atomic volume.
Related Questions: - Ethyne can be oxidised to oxalic acid by using
- According to Bohr’s theory, the angular momentum of electron in 5th orbit is
- Ethyl alcohol gives ethyl chloride with the help of
- Which of the following is not a tranquillizer
- For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Ethyne can be oxidised to oxalic acid by using
- According to Bohr’s theory, the angular momentum of electron in 5th orbit is
- Ethyl alcohol gives ethyl chloride with the help of
- Which of the following is not a tranquillizer
- For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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