Pyrogallol is

25 mL of a gaseous hydrocarbon is mixed with 150mL of oxygen in an eudiometer. After sparking and cooling back the mixture is passed through alkaline pyrogallol. The volume loss surffered in pyrogallol is 25mL. Calculate the molecular weight of hydrocarbon.

The use of pyrogallol in Ramsay - Rayleigh second method is

Write the IUPAC names and draw structures of the following compounds whose common names are given: (i) Pyrogallol (ii) Glycerol (iii) Resorcinol

Write the structural formulae of the following compounds : (i) Picric acid (ii) Cumene (iii) Styrene (iv) Phthalimide (v) Hydroquinone (vi) Pyrogallol (vii) 1-Phenylpropanone (viii) 3-Bromo-1-Phenylpropene (ix) Anisole (x) Benzophenone (xi) Cinnamic acid (x) Benzophenone (xi) Cinnamic acid (xii) p-Toluidene (xiii) 2,6-Dimethylphenol (xiv) p-Methoxybenzaldehyde.

Write the IUPAC name of Pyrogallol

What happens when oxygen gas is passes through alkaline pyrogallol solution ?

SO_(2) and CO_(2) both turn lime water (A) milky coloured , SO_(2) also turns K_(2)Cr_(2)O_(7)//H^(o+)(B) green while O_(2) is soluble in pyrogallol (C ) turning it black .These gases are to be detected in order by using these reagents .The order is