A metal when left in air for many days turn
in air it turns black. This metal is :
ir for many days turns green, but when heated
(1) Fe
(2) Cu
| (3) Cr
(4) Ag
एक धातु जिसे हवा में बहुत दिनों तक छोड़ देने से हरी हो जाती है तथा हवा
में गर्म करने से काली हो जाती है, वह धातु है :
(1) Fe
(2) Cu
(3) Cr
(4) Ag
Answers
Answered by
0
Answer:
2) Cu
Explanation:
Copper corrodes when it reacts with air and develops a green coating and turns black when it is heated
Similar questions