Question

Which of the following is true about compounds?
A) They are substances B) They have properties similar to those of their component elements C) They can be physically separated into their component elements D) They have compositions that vary

Answer 1

Answer:

the answer is A and D

they are substance their properties are not similar to their component element the constituent of a compound cannot be separated by simple physical process and they have composition that vary

Explanation:

hope it will help you

Answer 2

The true statement about compounds is- A) They are substances.

• Compounds are pure substances that are formed due to chemical bonding between two or more different elements. The constituent elements of a compound are uniformly distributed i.e. compounds have uniform composition.
• These elements are chemically combined in a fixed proportion of their mass. Hence, we cannot separate the different elements of a compound by physical methods.
• The properties of a compound can be different from the elements it is made up of. For example- water is a compound that is formed due to chemical bonding between oxygen and hydrogen. The properties of water are different from oxygen and hydrogen.