in chemistry numerical cantant marks

Het Anurrag!

In order to give an accurate and reliable answer to your query, you must give the details of the examination you are asking about. We can't help you if you don't give the name of the examination for which you are asking this question. Kindly give the details of exam you are interested in. As far as general situation goes, Yes chemistry numerical does contain marks but you need not worry as numericals in Chemistry aren't as tough as you think, they just require practice, accurate knowledge of formulae and knowledge about units and their interconversion.