When a magnesium ribbon is burnt in the air, the ash formed is
(a) black
(b) white
(c) yellow
(d) pink

Academic Chemistry NCERT Class 10

Correct Answer: (b) white

Explanation: When a Mg ribbon is burnt in air, the ash formed is of magnesium oxide which is white in colour.

2Mg(r) + O₂(g) → 2MgO(f)

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Updated on: 14-Mar-2023

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