WBCS.LIVE practice question

Mg (s) + O2 (g) ā†’ MgO (s) + energy, this reaction may be classified as a/an

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Combination reaction
  2. Oxidation reaction
  3. Exothermic reaction
  4. All of the above

Correct answer and explanation

Correct answer: All of the above

Explanation: āœ… Correct Answer: D) All of the above šŸ“š Explanation: The burning of magnesium in oxygen to form magnesium oxide is a 'Combination' reaction as two elements form one product. it is also an 'Oxidation' as the magnesium gains oxygen. Because the process releases a lot of heat and bright light, it is also an 'Exothermic' reaction. Therefore, all the descriptions given in the options are scientifically correct.