Chemistry · Chemical Reactions and Equations
When magnesium ribbon is burnt in air, it forms a powdery substance A. When A is dissolved in water, it forms substance B which turns red litmus blue. Identify the substances A and B.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A = MgO, B = Mg(OH)2✓
- 2A = Mg(OH)2, B = MgO
- 3A = MgO2, B = Mg(OH)2
- 4A = MgO2, B = Mg(OH)
Correct answer
A = MgO, B = Mg(OH)2
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