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Choose the correct option: (a) The metal other than aluminum, which has a strong affinity for oxygen is:(A) Copper(B) Magnesium(C) Silver(D) Gold (b) A metallic oxide which cannot be reduced by normal reducing agents:(A) Zinc oxide(B) Magnesium oxide(C) Copper (II) oxide(D) Iron (III) oxide
Choose the correct option: (a) The metal other than aluminum, which has a strong affinity for oxygen is:
(A) Copper
(B) Magnesium
(C) Silver
(D) Gold
(b) A metallic oxide which cannot be reduced by normal reducing agents:
(A) Zinc oxide
(B) Magnesium oxide
(C) Copper (II) oxide
(D) Iron (III) oxide
Chemistry | Class 10 | ICSE | Metallurgy | Selina
Choose the correct option: (a) The metal other than aluminum, which has a strong affinity for oxygen is:
(A) Copper
(B) Magnesium
(C) Silver
(D) Gold
(b) A metallic oxide which cannot be reduced by normal reducing agents:
(A) Zinc oxide
(B) Magnesium oxide
(C) Copper (II) oxide
(D) Iron (III) oxide

 

Answer:

(a) The answer is (B) Magnesium because magnesium can easily react with oxygen to undergo oxidation reaction forming magnesium oxide

(b) The answer is (B) Magnesium oxide.

Magnesium metal is an alkaline earth metal. The tendency of these metals is to lose electrons. They lose electrons and form oxide. Now, they are stable hence it is very difficult for them to again gain that electron. Hence, they are not reduced by normal reducing agents.

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