Question

hello friends l'm new SO this was my first question pls answer fast

what is limiting reagent?

Answer 1

The substance that is totally consumed first in chemical reactions

Answer 2

Hey friend,

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Let us understand this with the help of example.

Let one mol of A and one mol of B completely react with each other to form 2 moles of AB.

Now, if we add 4 moles of A to 3 moles of B.

Then, 3 moles of A will completely react with 3 moles of B.

And 1 mol of A is left but B is all used up.

Hence B is preventing the reaction from being complete . Or we can say that B is limiting the reaction.

So, we say that B is limiting reagent.

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Hope this helped you !!