Question

State reason for the following :
(i) Non-metals cannot displace hydrogen from the acids.
(ii) Hydrogen is not a metal, yet it is placed in the activity series of metals.
(iii) Aluminium is more reactive than iron, yet it corrosion is less than that of iron.


CBSE Class X Science SA 2 (3 Marks)

Answer 1

(i) Non-metals are electron acceptors, they cannot supply electrons so as to convert H+ ion to H2(g).

(ii) Like metals, hydrogen can lose an electron to form positive H. ion.

(iii) Aluminium is covered with a strong protective layer of oxide which protects the metal from further corrosion.

Answer 2

Answer:

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Explanation:

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