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

Asked by Shivani Kumari | 1 year ago |  431

1 Answer

Solution :-

The shiny brown-colored element is Copper metal (Cu). When the metal is heated in the air, it reacts with atmospheric oxygen to form copper oxide. Hence the black-colored compound is the copper oxide.

2Cu(s) + O2(g) → 2CuO(s)

Answered by Vishal kumar | 1 year ago

Related Questions

Provide Some Important MCQ Questions for Class 10 Science Chemical Reactions and Equations with Answers?

Class 10 Science Chemical Reactions and Equations View Answer

Explain the following terms with one example each.

(a) Corrosion

(b) Rancidity Solution:

Class 10 Science Chemical Reactions and Equations View Answer

Explain the following in terms of gain of oxygen with two examples each.

(a) Oxidation

(b) Reduction

Class 10 Science Chemical Reactions and Equations View Answer