Question

Brass get discoloured in the air because of presence of which of the following gases in air
hydrogen sulphide
oxygen
nitrogen
carbon dioxide
​

Answer 1

Answer:

A)Hydrogen sulphide

Explanation:

It is because the presence of mixture of hydrogen and sulphide and brass is a type of thing which has a color very light and mixture is non temperature.so it gets discolored.

Answer 2

Answer:

Hydrogen sulphide

Explanation:

It is because the presence of mixture of hydrogen and sulphide and brass is a type of thing which has a color very light and mixture is non temperature (hot and cold type of temperature) so it gets discolored.