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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: - Of the following which one is classified as polymer
- Reduction of H₃C – NC with hydrogen in presence of Ni/Pt as catalyst gives
- Mg and Li are similar in their properties due to
- When acetic acid is heated with phosphorus pentaoxide(P₂O₅), the compound
- Which of the following statements is not correct for a nucleophile
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Of the following which one is classified as polymer
- Reduction of H₃C – NC with hydrogen in presence of Ni/Pt as catalyst gives
- Mg and Li are similar in their properties due to
- When acetic acid is heated with phosphorus pentaoxide(P₂O₅), the compound
- Which of the following statements is not correct for a nucleophile
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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