Chemistry, asked by Harshikarnavat7598, 1 year ago

Why do we observe a green coloured coating on copper metal or brass and black coloured coating on silver articlesc?

Answers

Answered by Shalu162119119
1
When they come in contact with Oxygen, Oxidation reaction takes place and green and black coats are developed on the respective metals.
Previous Question
Next Question
Similar questions
Physics, 9 months ago
An island has a very thin population of p in total, including human beings, animals and birds. No other life forms exist on that island. 50% of the total human population are men and number of women is 2.5 times the number of children, 30% of the total population comprises of birds and animals. If the total number of birds and animals is 552. Find the number of human population other than...
History, 9 months ago
The company used to direct military attack to annex the kingdom of________________and_________________...
Math, 9 months ago
Ratio between marked price of article P and Q is 3:4. Shopkeeper allowed d% discount on article P and (d +15) % discount on article Q, due to which selling price of both articles become equal. If shopkeeper earned a profit of 8% on selling article P, and a profit of 12.5% on selling article Q and profit earned on article Q is Rs. 32 more than that of article P. Find the cost price of both...
History, 1 year ago
Why did the indian extend support to the british govt during the first world war?
History, 1 year ago
Which ruler of vijayanagara kingdom called as gajabetakara?
English, 1 year ago
debate on history subject should be there in schools...
Math, 1 year ago
If n sin theta = m cos theta Then prove that {(m sin theta - n cos theta) / (m sin theta +n cos theta) + (m sin theta + n cos theta) / (m sin theta-n cos theta)} = {2(m^4+n^4) / m^4-n^4}...
Math, 1 year ago
WHAT IS THE BIG NUMBER...