Which triad includes calcium, strontium, and barium according to Dobereiner? - CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROP Quiz | GKFix.in

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Question

Which triad includes calcium, strontium, and barium according to Dobereiner?

A. Li, Na, K
B. Cl, Br, I
C. Ca, Sr, Ba
D. C, N, O

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