Chemistry · States of Matter - Gases, Liquids and Solids
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H bonding is not present in which of the following _______ ?
- A
DNA
- B
Proteins
- C
Carbohydrates
- D
Lipids
No hydrogen atom is connected to an oxygen, nitrogen or fluorine atom in lipids. So it has no electronegative atom that can form H-bonding. Hence, option D is correct.
H-bonding is present in DNA where its two strands are joined together by it. DNA has nitrogen as an electronegative atom and it also has hydrogen atoms. Hence, a hydrogen bond can be formed in DNA. So, this option is incorrect.
Proteins also have nitrogen atoms as electronegative atoms and hydrogen atoms as well. So, hydrogen bonding is present in proteins, which usually plays its role in maturation of proteins. Hence, this option is incorrect.
Carbohydrates have oxygen atoms that act as electronegative atoms and form loose bonds with hydrogen atoms. Hence, carbohydrates have h-bonding. So this option is incorrect.
Lipids have no electronegative atom that can form H-bonding.
Tagged under Chemistry · States of Matter - Gases, Liquids and Solids · 2021