Compounds can be separated into its elements.
True
False
A compound can be broken down into elements by a chemical reaction.
Write true or false. Correct the false statement.
The chemical formulae of different compounds can be written easily if the symbols and the valencies of the elements are known.
Which of the following statements about a compound is incorrect ?
(a) A molecule of a compound has atoms of different elements
(b) A compound cannot be separated into its constituent elements by physical methods of separation
(c) A compound retains the physical properties of its constituent elements
(d) The ratio of atoms of different elements in a compound is fixed
The properties of a compound are different from those of its constituent elements.