Question

1. A student while burning a magnesium ribbon in air, collected the products in a wet watch glass. The new product obtained was: (a) Magnesium oxide (b) Magnesium carbonate (c) Magnesium hydroxide (d) Magnesium chloride ​

Answer 1

Answer:

i think its magnesium oxide

Answer 2

The correct option is a.

• When Magnesium ribbon is burnt in the air Mg reacts with oxygen of the air to form magnesium oxide.
• The reaction is-
• $2Mg+O_2\rightarrow 2MgO$
• In this reaction, two moles of magnesium reacts with one mole of oxygen gas to form two moles of magnesium oxide.
• Thus magnesium oxide is formed.