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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: - If r is the radius of the first orbit, the radius of nth-orbit of H-atom is given
- In which of the folowing pair both the species have sp³ hybridization?
- Among the following, identify the compound which cannot act as both oxidising
- If 18g of water is electrolysed then volume of oxygen obtained at STP is
- Which one of the following is a non-benzenoid aromatic compound
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
- If r is the radius of the first orbit, the radius of nth-orbit of H-atom is given
- In which of the folowing pair both the species have sp³ hybridization?
- Among the following, identify the compound which cannot act as both oxidising
- If 18g of water is electrolysed then volume of oxygen obtained at STP is
- Which one of the following is a non-benzenoid aromatic compound
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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