Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Structure of Atom
Which of the following is a pure substance made up of two or more types of atoms or elements ?
1
Mixture
2
Compound
3
Element
4
More than one of the above
5
None of the above