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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: - A substance with initial concentration of a mol dm⁻³ follows zero order kinetics.
- The molecular of CO₂ has angle 180°.It can be explained on the basis of
- A detergent has which of the following group attached to the terminal of a long carbon
- Ammonia can be dried by
- which of the following molecules has trigonal planar geometry?
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
- A substance with initial concentration of a mol dm⁻³ follows zero order kinetics.
- The molecular of CO₂ has angle 180°.It can be explained on the basis of
- A detergent has which of the following group attached to the terminal of a long carbon
- Ammonia can be dried by
- which of the following molecules has trigonal planar geometry?
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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