Geometric isomerism is usually found in?
 

Pentane and 2-methyl butance have the same?
 

Propene can exhibit?

Hydro carbons which burn with smoky flame are called?
 

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

The first organic compound was synthesized in laboratory by?

Octane number can be improved by?

Main source of organic compounds is?

According to vital force theory?

Octane number 2 2 4-trimethyl pentane is?