How are reactions related to chemical bonds?

The type of bond has a great effect on the rate of reaction or speed of reaction.

Here we are going to discuss why and how it happens,

First of all in case of ionic compounds:-

Lets take example of Sodium hydroxide and Hydrochloric acid

NaOH (aq) + HCl (aq) →  NaCl + H2O

Now lets see in depth about ions of reactants

Here the ions are already formed in the solution only rearrangement is required. And some times the reaction is completed in some seconds only.

Dissociation of ionic compounds

so in the above case we have seen the ions are just to be rearranged.

Now in case of covalent compounds

Lets take an example of reaction between Iodomethane and Potassium hydroxide

CH3I + KOH → KI + CH­3OH

Here in this reaction it took more time as it required to break the old bonds and to form the new bonds.

As shown here

Mechanism of reaction between Iodomethane and Potassium hydroxide

Conclusion :-

So at last we can conclude that the ionic reactions are faster because they involve simply the rearrangement of ions , as the ions are already released in solution.

In case of covalent old bond breaking takes a lot of time and also new bond formation is also time consuming so these reactions are slow.

Published by Ankush Sharma

I am M.Sc (chemistry ) from Punjabi University Patiala. I am a science teacher with expertise in chemistry, with 8 years of experience in teaching. Writing and blogging is my hobby, I write whenever I am free. I am constantly working on creating a new and easy way of learning the tough things in an effective way. I am constantly working to make authentic and reliable information to be shared with my students and widen the horizons of knowledge.

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