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Which of the following elements will have the lowest first ionisation energy?
Options
(a) Li
(b) Mg
(c) Ca
(d) Rb
Correct Answer:
Rb
Explanation:
Rb belongs to I-A group and has maximum size. Hence, has lowest IE₁.
Related Questions: - Which one of the following does not involve coagulation
- If a given sample of water contains 0.06 g of Ca²⁺ ion per kg, calculate
- When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation
- The IUPAC name of tertiary butyl chloride is
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following does not involve coagulation
- If a given sample of water contains 0.06 g of Ca²⁺ ion per kg, calculate
- When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation
- The IUPAC name of tertiary butyl chloride is
- The greenhouse gas is
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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