JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The atomic numbers of four elements are given below. Which is an alkaline earth metal?

(A)10
(B)20Correct
(C)30
(D)40

Answer: (B)

Solution

Atomic number 20 corresponds to calcium, an alkaline earth metal (group 2). Atomic number 10 is neon (a noble gas), 30 is zinc (a d-block/post-transition metal), and 40

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Question ID VK-137978