Chapter 23, Problem 4STP

To determine

To Choose: The correct option.

Answer to Problem 4STP

Option B

Explanation of Solution

Introduction: Organic compounds are hydrocarbons and their derivatives in which covalently bonded carbon is an essential constituent.

Hydrocarbons are organic compounds containing only carbon and hydrogen atoms.

Carbohydrates are compounds that contain carbon, hydrogen and oxygen in ratio 1:2:1, that is, they contain twice as many hydrogen atoms as oxygen atoms.

Alcohols are organic compounds having a functional group −OH. They contain carbon, hydrogen and oxygen, but the element ratio is not same for all alcohols.

Isomers are essentially hydrocarbons having same chemical formula but different structural formula. They also contain only hydrogen and carbon atoms.

Conclusion: Carbohydrates contain carbon, hydrogen and oxygen in ratio 1:2:1, that is, they contain twice as many hydrogen atoms as oxygen atoms.