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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 is not an aldose
- Carbogen is
- What is formed when hydrogen atom of the -OH group in phenol is replaced by
- The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18g
- Which of the following practices will not come under green chemistry
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 is not an aldose
- Carbogen is
- What is formed when hydrogen atom of the -OH group in phenol is replaced by
- The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18g
- Which of the following practices will not come under green chemistry
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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