Question 8
In which list are the metals correctly arranged in the order of their increasing reactivity with water?
A magnesium potassium < sodium < calcium < iron
B. potassium sodium calcium< magnesium <iron
C magnesium < sodium <calcium < potassium < iron
Diron <magnesium < calcium < sodium <potassium
ОА
B
C
D
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The reactivity of elements (metals) towards water decreases towards the right in a period. It also increases down the group. But zinc is more reactive towards water than iron. Hence the correct order is:
The reactivity of elements (metals) towards water decreases towards the right in a period. It also increases down the group. But zinc is more reactive towards water than iron. Hence the correct order is:Iron
Explanation:
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