Question

A shiny brown coloured element x on heating in air becomes black in colour. name the element x and the black substance.

Answer 1

★ Hey mate ★


here is your answer !!




a Shiny brown coloured element x on heating in air become black in colour the element is
" Copper "


in the presence of oxygen there is combination reaction take place this make copper black.


there is formation of copper oxide which is generally black in colour.


here is reaction that show the formation of copper oxide :-

2Cu + O2 ==> 2CuO


show in simple word there is formation of copper oxide which make copper black in colour.



and the element is " X " = copper



hope it helps you dear !!;


$thanks$

Answer 2

heya... A shiny brown coloured element x is copper (Cu).
on heating in air/ getting oxidized becomes black in colour.
because it forms copper oxide (CuO) which is black in color...due to the combination reation.

.name the element x and the black substance.
element x- copper..
black substance-copper oxide..


hope helped..