[acskjw]

Is the reaction equation of oxidation of alcohol using Pyridinium Chlorochromate as below?

C5H5NHCrO3Cl + R2CHOH → C5H5NHCl + H2CrO3 + R2C=O

According to wikipedia, it said that black tar would be formed. I would like to know what is the compound present in the black tar?
Is it C5H5NHCl + H2CrO3 ? Are there any solvents to dissolve the compounds?

C5H5NHCl is organic or aqueous?
H2CrO3 is organic or aqueous?

[sjb]

Is the reaction equation of oxidation of alcohol using Pyridinium Chlorochromate as below?

C5H5NHCrO3Cl + R2CHOH → C5H5NHCl + H2CrO3 + R2C=O

According to wikipedia, it said that black tar would be formed. I would like to know what is the compound present in the black tar?
Is it C5H5NHCl + H2CrO3 ? Are there any solvents to dissolve the compounds?

C5H5NHCl is organic or aqueous?
H2CrO3 is organic or aqueous?

Wiki also gives you the balanced equation, (at least, the English version does, at this time), and gives some indication of what the tar is / how to remove it. By classifying C₅H₅NHCl and H₂CrO₃ as aqueous or organic are you trying to see in which phase they're likely to be in?

[ardbeg]

presumably you are looking to separate the by-products at the work up stage?  usually a column or at least a silica plug is required with PCC.