11. Metals have lustre (shine). Give reason why some metal articles become dull and loose their shine.
11. Metals have lustre (shine). Give reason why some metal articles become dull and loose their shine.
Harshit Singh , 4 Years ago
Grade 12th pass
6 grade science> 11. Metals have lustre (shine). Give reas...
1 AnswersPawan Prajapati
Ans: Metals when exposed to air react with moisture and gases present in it, thereby forming a dull layer of some other compound on it.
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