Dye Test

The reaction of Benzenediazonium chloride with aniline yields yellow dye. The name of the yellow dye is

A dye, phenolphtnalein is prepared by reacting phenol with phthalic anhydride in acidic medium. It give pink colour in alkaline medium due to extended conjugation I a new complex formed (phthalein- dye test) identify the compled A:

The colloidal solution of two immiscible liquids in which one of the liquids acts as a dispersed phase and the other as dispersion medium is called emulsion. Milk is an example of emulsion in which fat globules are dispersed in water. Emuldion are of two types i.e., O/W and W/O type emulsion, identified by dilution test, conductivity test and dye test. Choose the correct answer:

The colloidal solution of two immiscible liquids in which one of the liquids acts as a dispersed phase and the other as dispersion medium is called emulsion. Milk is an example of emulsion in which fat globules are dispersed in water. Emuldion are of two types i.e., O/W and W/O type emulsion, identified by dilution test, conductivity test and dye test. Which property is observed in an emulsion ?

The colloidal solution of two immiscible liquids in which one of the liquids acts as a dispersed phase and the other as dispersion medium is called emulsion. Milk is an example of emulsion in which fat globules are dispersed in water. Emuldion are of two types i.e., O/W and W/O type emulsion, identified by dilution test, conductivity test and dye test. In milk, whihc acts as an emulsifier ?

Red dye for dyeing silk to got from petals of

Red dye for dyeing silk to got from petals of

Red dye for dyeing silk to got from petals of

Given 5 different green dyes , 4 different blue dyes and 3 different red dyes , the number of combinations of dyes which can be chosen taking at least one green and one blue dye is