How many of the following compounds are soluble in aqueous solution of  ${\mathrm{NaHCO}}_3$
1) Phenol 2) Cyclohexanol 3) 2,4-dinitro phenol
4) Benzoic acid 5) Benzene sulphonic acid 6) P-cresol
7) P-methoxy phenol 8) α -  naphthol 9) N-methyl aniline