36.A shiny brown coloured element when heated in air becomes black.Name the element and the black coloured substance so formed.

Open in App

Solution

The shiny brown coloured substance is Copper (Cu). When copper reacts with oxygen of air, it forms a black compound copper oxide (CuO).

2 Cu(s) + O₂ (g) → 2 CuO (s)
copper oxygen Copper oxide
(red-brown) (from air) (black)

Suggest Corrections

Similar questions

A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.

Q. A shiny brown coloured element

^{'} X^{'}

on heating in air becomes black in colour. Name the element

^{'} X^{'}

and the black coloured compound formed.

Q. A shiny brown-coloured element 'X' on heating in air becomes black in colour. Name the element 'X'?

A shiny brown coloured element 'X' on heating in air becomes black in colour. Name the element 'X' , the black coloured compound formed and the reaction. [3 MARKS]

Q. Question 17

A shiny brown-colored element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.

Join BYJU'S Learning Program

36.A shiny brown coloured element when heated in air becomes black.Name the element and the black coloured substance so formed.

The shiny brown coloured substance is Copper (Cu). When copper reacts with oxygen of air, it forms a black compound copper oxide (CuO). 2 Cu(s) + O2 (g) → 2 CuO (s) copper oxygen Copper oxide (red-brown) (from air) (black)

The shiny brown coloured substance is Copper (Cu). When copper reacts with oxygen of air, it forms a black compound copper oxide (CuO).

2 Cu(s) + O₂ (g) → 2 CuO (s)
copper oxygen Copper oxide
(red-brown) (from air) (black)