Auxochromes

What are auxochromes?

• Groups of atoms that cause a shift in the absorption spectrum of a compound

• Categories of programming languages

• Species of exotic flowers

• Types of musical instruments

How do auxochromes affect the color of a compound?

• They have no effect on the color of the compound.

• They cause the compound to become colorless.

• They extend the conjugated system and shift the absorption spectrum.

• They decrease the conjugated system and shift the absorption spectrum.

Name one example of an auxochrome.

• Amino group (-NH2)

• Methyl group (-CH3)

• Hydroxyl group (-OH)

• Carboxyl group (-COOH)

What is the role of auxochromes in the absorption spectrum of a compound?

• They reduce the absorption spectrum of a compound.

• They extend the absorption spectrum of a compound.

• They change the color of the compound but do not affect the absorption spectrum.

• They have no effect on the absorption spectrum of a compound.

Explain how auxochromes influence the color of dyes.

• Auxochromes have no effect on the color of dyes

• Auxochromes change the physical state of the dye

• Auxochromes decrease the conjugation of the dye molecule

• Auxochromes extend the conjugation of the dye molecule, affecting the wavelength of light absorbed and reflected.

What is the significance of auxochromes in organic chemistry?

• They are only found in inorganic chemistry

• They have no effect on the color of dyes

• They modify the color of a dye by extending the conjugated system.

• They are used to remove color from dyes

Discuss the relationship between auxochromes and chromophores.

• Auxochromes have no effect on the color of a chromophore

• Auxochromes and chromophores are unrelated and do not interact

• Auxochromes modify the color of a chromophore by extending the conjugated system and affecting the absorption of light.

• Chromophores have no impact on the absorption of light

How do auxochromes affect the solubility of a compound?

• Auxochromes decrease the solubility of a compound

• Auxochromes increase the solubility of a compound

• Auxochromes have no effect on the solubility of a compound

• Auxochromes change the color of a compound but do not affect solubility

Explain the concept of bathochromic shift in relation to auxochromes.

• The bathochromic shift is unrelated to the presence of auxochromes

• The bathochromic shift is caused by the absence of auxochromes

• The bathochromic shift is the shift of a peak in the absorption spectrum of a molecule to a longer wavelength, caused by the presence of auxochromes.

• The bathochromic shift is the shift of a peak to a shorter wavelength

What are the different types of auxochromes and their characteristics?

• Positive, negative, and neutral

• Acidic, basic, and neutral

• Red, blue, and green

• Solid, liquid, and gas