In basic dyes which of the following group is present?

- N O_{2}

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- S O_{3} H

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- O H

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- N H_{2}

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Solution

The correct option is D $- N H_{2}$
Basic dyes such as methylene blue, crystal violet have $- N H_{2}$ group. These are very powerful dyes and used to colour wool, silk, cotton etc.

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Similar questions

- C O O H, - C N, - N H_{2} - C O C H_{3}, - N H C O C H_{3}, - O H, - C H O, - S O_{3} H, - C l, - N O_{2}

- N O_{2}

- N H_{2}

{N H}_{2}^{-}, {N O}_{2}^{-}, {N O_{3}}^{-}

N O_{2}

S O_{3} H

C F_{3}

C H O

- N H_{2}

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