Question

Q-4What happens when-
• Magnesium ribbon is burnt in air.

Answer 1

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Magnesium reacts with air to form oxide and nitride. On reaction with water the oxide gives hydroxide and nitride gives hydroxide and ammonia. It burns with a dazzling flame.

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Answer 2

Answer:

Answer:

It forms a powdered substance known as (magnesium oxide)

2Mg+O2=2MGO (IT IS BALANCED )

hence it is a physical change