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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.
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- In methane four C-H bonds are directed towards the corners of
- Bhor’s theory is applicable to
- In an organic compound phosphorus is estimated as
- According to Bohr’s theory, the angular momentum of electron in 5th orbit 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
- Hydrolytic reaction of fats, with caustic soda, is known as
- In methane four C-H bonds are directed towards the corners of
- Bhor’s theory is applicable to
- In an organic compound phosphorus is estimated as
- According to Bohr’s theory, the angular momentum of electron in 5th orbit 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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