Answer: True
Explanation:
Hydrogen bonds are special type of dipole dipole forces which are formed when hydrogen atom bonds with an electronegative element.
This important property of hydrogen bond occurs in polar molecules such as water which contains partial negative charges at one region of a molecule and also a partial positive charge elsewhere in the molecule.
Hydrogen bonds are weak and easily broken but when many hydrogen bonds are present, they are very strong.
Hydrogen bond is present in macromolecules such as DNA which holds the strands together.