Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life
LPG (cooking gas) is a mixture of
1
Carbon mono oxide and Carbon di oxide
2
Butane and Propane
3
Methane and Ethane
4
More than one of the above
5
None of the above