Question

when an object made of metal 'X' is kept in air for a consedirable time,it loses its shine and becomes almost black due to the formation of a layer of substance 'Y'. when an object made of another metal 'Z' is kept in damp air for a considerable time, it gets covered with green layer of substance.

a) identify the metal 'X'

b) name the substance 'Y'

c) identify the metal 'Z'​

Answer 1

Answer:

) Silver

(b) Copper

(c) Silver sulphide

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