Question

what will happen if we talk while eating

Answer 1

there is a chance for the blocking of wind pipe as the food may enter the wind pipe at the pharynx. this may even result in death of the person...
hope it is correct...

Answer 2

if we talk while eating the epiglottis(a flap like structure which closes when we drink or eat to avoid food going in the wind pipe) can forget to close and food will enter in the windpipe and make us cough and choke.