Question

Which of the following is not correct regarding compound?

• A. Elements react to form new compounds
• B. The composition of each new substance is always fixed
• C. Sugar can be classified as compound
• D. The constituents can be separated by physical methods or using electrochemical reactions

Answer 1

The correct option is D The constituents can be separated by physical methods or using electrochemical reactions

Sugar can be classified as compound as it is formed by combination of two or more elements with fixed proportion.
The constituents of compound can be separated only by chemical or using electrochemical reactions.