Question

If hydrogen and oxygen are mixed and kept in the same vessel at room temperature, the reaction does not take place to form water because:

• A. activation energy for the reaction is very high at room temperature
• B. molecules have no proper orientation to react to form water
• C. the frequency of collisions is not high enough for the reaction to take place
• D. no catalyst is present in the reaction mixture

Answer 1

The correct option is A activation energy for the reaction is very high at room temperature

Activation energy = It is defined as the least possible amount of energy (minimum) which is required to start a reaction or the amount of energy available in a chemical system for a reaction to take place.

The activation energy for the water formation reaction is very high at room temperature due to this reaction does not take place, So the correct option is [A]