Question

Which of the following is not an Auxochrome group *

1 point

-OH

-SH

-OR.


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Answer 1

Answer:

-OR

Explanation:

because it not a auxochrome but it is a chromosomes group

Answer 2

Answer: -SH is not an auxochrome group.

Explanation:

Chromophore is a group that absorbs certain light and reflect a certain colour.

• For e.g. - Nitro group, it absorbs light and reflects yellow colour to the compound.

An auxochrome is a functional group, once attached to a chromophore it changes both the intensity and wavelength of absorption to reflect the colors.

• Some auxochromic groups are: -OH, -NH2, -OR, -NHR, etc.

So, out of these, -OH, -SH, -OR,

-SH is not an auxochrome.

• Because it does not change the wavelength and intensity of absorption once attached to a chromophore.

RESULT: -SH is not an auxochrome group.