chromotropic मीनिंग इन हिंदी

The usefulness of this reagent in quantitative determination is the formation of a red colouration ( peaking at 580 nm wavelength ) when chromotropic acid in 75 % sulfuric acid reacts with formaldehyde.
Members of this species have been observed to exhibit aversion to large areas of conspicuous color on and near human observers ( negative chromotropic responses ), including white, red, orange, and blue.