Saved Bookmarks
| 1. |
Silver articles becomes black when kept in open for some time, whereas copper vessels lose their shiny brown surfaces and gain a green coat when kept in open. Name the substance present in air with which these metals react and write the name of the products formed. |
|
Answer» (a) Because Pt, Au, Ag are highly malleable, highly ductile, lustrous and less reactive. (b) Sodium and potassium are highly reactive metal so stored under oil to protect from reaction with air. |
|