an element exposure to moist air turns black and a new compound y is formed.the substance x and y are?>

Asked by my3shyll | 9th Jul, 2016, 05:18: PM

Expert Answer:

X = Ag
Y = Ag2S
Silver  turns black because it reacts with gases and moisture present in air due to which it corrodes.

Answered by Vaibhav Chavan | 10th Jul, 2016, 05:16: PM