When magnesium ribbon is burnt in air, it combines with oxygen to form _______ .

Q.

A magnesium ribbon is burnt in air. A student made the following observations:

i. Magnesium ribbon undergoes oxidation reaction.
ii. Magnesium reacts with air to form magnesium oxide.
iii. Magnesium ribbon undergoes decomposition reaction.

Which of the following statements is correct?

Q. Burning magnesium ribbon in the air to form magnesium oxide is an example of _______ (combination/decomposition) reaction.

Q. What do you see when a magnesium ribbon is burnt? Is magnesium oxidized or reduced in this reaction?

Q. What is a redox reaction? When a magnesium ribbon burns in air with a dazzling flame and forms white ash, is magnesium oxidized or reduced? Why?

Q. Assertion :Magnesium ribbon is ignited with a heated wire. Reason: Magnesium ribbon is ignited by heated wire to give magnesium oxide.