MCQ
Most reducing agent is
- ✓$K$
- B$Mg$
- C$Al$
- D$Ba$
So, $Na\, <\, K ; Mg \,<\, Ca$
Alkali metals are strong reducing agents that alkaline earthmetals. so, $K\, >\, Mg$
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(Given : $h =6.626 \times 10^{-34} Js$ )