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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: - The base principle of Cottrell’s precipitator is
- Which of the following molecules has the maximum dipoles moment
- On heating glycerol with conc.H₂SO₄, a compound is obtained which has bad odour.
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- When 2-bromobutane reacts with alcoholic KOH, the reaction is called
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The base principle of Cottrell’s precipitator is
- Which of the following molecules has the maximum dipoles moment
- On heating glycerol with conc.H₂SO₄, a compound is obtained which has bad odour.
- Hardness of water due to presence of salts of
- When 2-bromobutane reacts with alcoholic KOH, the reaction is called
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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