Which of the following metals cannot replace hy... - JAMB Chemistry 2018 Question
Which of the following metals cannot replace hydrogen from water or steam?
A
Sodium
B
Magnesium
C
Iron
D
Calcium
correct option: d
Metals above hydrogen in the activity series can displace or replace hydrogen present in water (H2O) example of such metals are Ca, K, Na etc. But the metals below hydrogen in the activity series cannot replace hydrogen in the activity series example of such metals are Cu Hg.
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