Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 General Science Chemistry Basic Concepts of Chemistry
Which of the following statements about a compound is incorrect?
1
A molecule of a compound has atoms of different elements.
2
A compound cannot be separated into its constituent elements by physical methods of separation.
3
A compound retains the physical properties of its constituent elements.
4
The ratio of atoms of different elements in a compound is fixed.