The first organic compound was synthesized in laboratory by?

According to vital force theory?

Octane number 2 2 4-trimethyl pentane is?
 

Geometric isomerism is usually found in?
 

Hydro carbons which burn with smoky flame are called?
 

Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have?

Octane number can be improved by?

Main source of organic compounds is?

Pentane and 2-methyl butance have the same?
 

Propene can exhibit?