Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Environmental Science Energy and Environment Renewable Energy
Biofuels are blend of which two forms of alcohols?
1
Ethanol and methanol
2
Ethanol and propanol
3
Methanol and propanol
4
More than one of the above
5
None of the above