state the reason: 1.nonmetals cannot displace hydrogen from the acids. 2.hydrogen is not a metal,yet it is placed in the activity series of metals. 3.aluminium is more reactive than iron,yet corrosion is less than that of iron.
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Answer:
1) non metals cannot displace hydrogen from the acids. because non metals have ability to accept electrons, they cannot supply electrons to convert H + ion to H2.
2) hydrogen is not a metal, yet it is placed in the activity series of metals. because, it shows graduation with the alkali metal as well as halogens. while like metal hydrogen lose an electron to form positive charge H + ion.
3) Aluminium is more reactive than iron ,yet corrosion is less than that of iron . because aluminium is always covered with a a highly strong protective layer of oxide which helps to protect the metal from corrosion. while iron does not covered with such type of layer hence corrosion Rises quickly on iron .
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