Question

Which of the following is an isomerisation reaction?

(a) Formation of ammonia from hydrogen and nitrogen

(b) Decomposition of hydrogen peroxide to hydrogen and oxygen

(c) Conversion of glucose to fructose

(d) Combustion reactions

This question was posed to me in an interview for job.

My doubt stems from Classification of Reactions topic in section Basic Concepts of Chemical Reaction Engineering

Answer 1

Correct option is (c) Conversion of glucose to fructose

The best I can explain: Isomerisation is the process in which one molecule gets transformed into another molecule that has absolutely the same atoms which are arranged in a different way. Glucose and fructose, share the same molecular formula: C6H12O6. Although all they have the same molecular formula, the arrangement of atoms differs.