WorksheetsDPT dye and pigment
Total questions: 10
Worksheet time: 10mins
Refractive index is defined as the ratio of
Density of pigment to density of oil
Velocity of light in air to velocity in pigment
Particle size to surface area
Weight to volume
The hiding power of a pigment mainly depends on its
Solubility
Refractive index
Molecular weight
Chemical formula
(a) instrument is used for color matching in dyes?
UV–Visible spectrophotometer works on the principle of
Reflection of light
Emission of light
Refraction
Absorption of UV and visible radiation
Fastness to water indicates resistance of dye to
Sunlight
Washing and rain
Heat
Chemicals
The wavelength range of visible light is approximately
100–200 nm
200–400 nm
400–700 nm
700–1000 nm
Beer–Lambert law relates absorbance with
Temperature and pressure
Wavelength and frequency
Density and volume
Concentration and path length
What is the full form of TLC?
(a)
HPLC full form??
(a)
Which scientist introduce column chromatography
(a)
