Main source of organic compounds is?

The first organic compound was synthesized in laboratory by?

According to vital force theory?

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

Octane number can be improved by?

Hydro carbons which burn with smoky flame are called?
 

Propene can exhibit?

Pentane and 2-methyl butance have the same?
 

Octane number 2 2 4-trimethyl pentane is?
 

Geometric isomerism is usually found in?