Question

Which one of the following is true for compounds?

a. It shows the properties of its constituents
b. It may be homogenous or heterogeneous
c. It can be separated by physical methods
d. It has fixed melting and boiling point .​

Answer 1

Answer:

a) true

b) true

c) false

d) true

Explanation:

a)Properties of a compound are different from its constituents, while a mixture shows the properties of its constituent elements. Properties of a compound are different from its constituents, while a mixture shows the properties of its constituent elements.

b)Compounds have a definite composition, so they are the same throughout, which makes them homogeneous. The only way for a compound to be a heterogeneous mixture is if it is present in two or more states, such as water and ice, or dry ice (frozen carbon dioxide) and carbon dioxide gas.29-Dec-2017

c)A compound is a pure substance composed of two or more different atoms chemically bonded to one another. That means that it can not be separated into its constituents by mechanical or physical means and only can be destroyed by chemical means.

d)The compounds are formed where atoms of two or more elements combine in a fixed ratio to each other. The compounds have a fixed melting and boiling point.

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Answer 2

Answer:

The correct answer po is Letter D.