Question

What is the colour of the substance obtained by burning
a magnesium ribbon ?
A. White B. Black
C. Gray D. Blue​

Answer 1

Answer:

A white.

Explanation:

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Answer 2

$\huge \fbox \colorbox{pink}{White}$

What is the colour of the substance obtained by burning a magnesium ribbon ?

Ans:A.White

When magnesium ribbon is burnt in air, it combines with oxygen to form white powder magnesium oxide (MgO) with the release of heat and light. The magnesium oxide forms a white powder. To form this powdery substance, magnesium gives off two electrons to oxygen atoms.

2Mg+O2⟶2MgO