Question

Q23- An element X on exposure to moist air turns reddish-brown and a new compound Y is formed. The substances X and Y are

A) X = Fe, Y = Fe₂O₃

B) X = Ag, Y = Ag₂S

C) X = Cu, Y = CuO

D) X = Al, Y = Al₂O₃

Answer 1

Answer:

B) X =Ag, Y=Ag²S

please mark me the brainliest answer...

Answer 2

Answer:

The substance X and Y are (1) X = Fe, Y = Fe2O3 (2) X = Ag, Y = Ag2S (3) X = Cu, Y = CuO (4) X = Al, Y = Al2O3. The exposure of element X to moist air forms a reddish brown Y which is a new compound is formed. The reddish brown compound is known as rust Fe2O3.