In how many interlocking rings are the carbon atoms arranged in a steroid molecule

How many carbon atoms are present in a molecule of : RuBP

How many carbon atoms are present in aspirin ?

How many carbon atoms are present in aspirin ?

Total number of carbon atoms present in steroid nucleus.

The structural formula of cocaine is shown below. How many stereogenic carbon atoms are there in this molecule ?

The structural formula of cocaine is shown below. How many stereogenic carbon atoms are there in this molecule ?

How many atoms are present in oxygen molecule.