Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life
A chemical process in which a substance reacts with oxygen to give out heat is called:
1
Combustion
2
Radiation
3
Flaming
4
More than one of the above.
5
None of the above