Elements of the IIA group having electronic configuration ns^2 are called alkaline earth elements because:

JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Elements of the IIA group having electronic configuration are called alkaline earth elements because:

(A)They only occur in earth
(B)Their salts form only alkaline solution
(C)They form divalent cations only
(D)Their oxides are non-fusible, like earth matterCorrect

Answer: (D)

Solution

The historical name "alkaline earth" arose because the oxides of these metals, like the "earths" known to early chemists, are infusible (non-fusible) refractory substances, and they also form alkaline (basic) solutions in water. Options (A), (B) and

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Question ID VK-138066