do you know some simple lab test that shows the presence of a ring structure ?

Question

if you have answer for the previous question , can you help me for the followings as well ?

1 . test that distinguish primary alcohol from secondary ;
2 . test that shows the presence of carboxylic acid ;

thanks

thanksx steven , i really appreciate it

Answer 1

1. I answered.

2. Add to aqueous NaHCO3 (sodium bicarbonate) solution. If the molecular weight of R-COOH is suitably high so it is insoluble or sparingly soluble in water, the NaHCO3 will dissolve it. NaOH solution would be too strong, because it would also dissolve high-molecular weight phenols.