Question

Which bonds are strong in carbohydrates?

Answer 1

Well all of these are strong bonds........

Explanation:

In `C_m(H_2O)_n` all the `C-C`, `C-H`, and `C-O`, and `O-H` bonds are strong bonds, and the ability of the carbon and oxygen atoms to catenate and form long chains, and then condense with themselves, gives rise to a very rich and varied chemistry, even despite the fact that we only include the ONE oxygen heteroatom in the general formula.

Anyway, you should consult your text, but the take home message is that all of the given bonds are strong.