Arrange the metals in the decreasing order of their reactivity with water.
A
Calcium
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B
Iron
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C
Silver
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D
Magnesium
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E
Sodium
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Solution
Different metals react with water with different reactivity. According to reactivity series the reactivity decreases in the order of Na > Mg > Ca > Fe > Ag. The reactivity of the metals increases by increasing the temperature of the water.