Question

Samwell has to answer 2 final questions to become the junior Maester. Let's help him.
Elementary reactions are so called because?

• A. They are the basic reactions of nature
• B. They have just 2 reactants.
• C. They take place in a single step.
• D. They give rise to exactly one product.

Answer 1

The correct option is C They take place in a single step.

Recall what you saw from the video. Elementary reactions are so named because they have just 1 step in the entire reaction. That is to say that they get completed in a single step.

You will learn a slightly more rigorous definition of elementary reactions soon.

Examples of elementary reactions would be

$N_2{O}_4\left(g\right)\to 2N{O}_2\left(g\right)2NOCl\to 2NO\left(g\right)+C{O}_2\left(g\right)2NO\left(g\right)+O_2\left(g\right)\to 2N{O}_2\left(g\right)$

All other types of reactions are called complex reactions.