Question

Al Na Ca are reducing agent explain​

Answer 1

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For example, among Na, Cr, Cu+ and Cl−, Na is the strongest reducing agent and Cl− is the weakest one. Common reducing agents include metals potassium, calcium, barium, sodium and magnesium, and also compounds that contain the H− ion, those being NaH, LiH, LiAlH4 and CaH2.