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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: - Gem-dihalides are hydrolysed with either acid or basic catalysts to give
- According to Dalton’s atomic theory the smallest partical of the matter is called
- Which of these statements about [CO(CN)₆]³⁻ is true
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Gem-dihalides are hydrolysed with either acid or basic catalysts to give
- According to Dalton’s atomic theory the smallest partical of the matter is called
- Which of these statements about [CO(CN)₆]³⁻ is true
- The bond dissociation energies of H₂, Cl₂ and HCl are 104, 58, and 103
- The correct order of electron affinity is
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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