Question

Magnesium ribbon on burning in air produces____________.

• A. magnesium oxide, water, and light.
• B. magnesium oxide and heat
• C. magnesium oxide, heat, and light.
• D. magnesium oxide, water, and heat.

Answer 1

The correct option is C

magnesium oxide, heat, and light.

Explanation for the correct answer:-

Option (C)

• When magnesium ribbon is burnt in presence of oxygen then it produces a dazzling white flame.
• The products that are formed here are, Magnesium oxide, heat, and light
• The complete reaction is:

$\underset{\mathrm{Magnesium}\mathrm{ribbon}}{2\mathrm{Mg}\left(\mathrm{s}\right)}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}\to \underset{\mathrm{Magnesium}\mathrm{oxide}}{2\mathrm{MgO}\left(\mathrm{s}\right)}+\mathrm{Heat}+\mathrm{Light}$

• Due to the absence of hydrogen water is not formed here.
• Hence it is the correct answer

Therefore, option C is the correct answer.