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Which pair of atomic numbers represents s-block elements?
Options
(a) 3,12
(b) 6,12
(c) 7,15
(d) 9,17
Correct Answer:
3,12
Explanation:
Last electron goes to s-subshell.
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Question Type: Memory
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which is purified by steam distillation
- When carbon monoxide is passed over solid caustic soda heated to 200▫ C it forms
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- In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following
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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