Question

The color of p-amino azobenzene is,
A) Organe.
B) Congo red.
C) Bismark brown.
D) Indigo.

Answer 1

We know that Diazonium mixtures or diazonium salts are a gathering of natural mixtures sharing a typical practical gathering $R - N + 2{X^ - }$ where R can be alkyl or an aryl, and X is an inorganic or natural anion, like a halogen.

Complete answer:
We have to know that the aniline Yellow is a yellow azo color and a sweet-smelling amine. It is a subordinate of azobenzene. It resembles an orange powder. Aniline Yellow was the principal azo color. It was first created in $1861$ by C. Mene. Hence option A is correct.
The second azo color was Bismarck Brown in$1863$. Aniline Yellow was popularized in $1864$ as the primary business azo color, a year after Aniline Black. It is fabricated from aniline.

Additional information:
Diazonium salts are quite possibly the most flexible blends of natural and inorganic parts. Its overall method of portrayal is $R - N + 2{X^ - }$The R is a natural gathering, by and large an aryl bunch while X addresses particles. For the most part, diazonium salts have$C{l^-}$, $B{r^-}$, $B{F_4}^ -$ , as$X$. The name of these salts depends on the presence of the ${N^{ + 2}}$ bunch or the diazonium bunch. The naming of these salts is finished by adding the additional diazonium to the parent hydrocarbon from which they are inferred and afterward it is trailed by the anion X like bromide.

Note:
We must have to know that the aniline Yellow was engaged with the $1981$ Spanish Toxic Oil Syndrome (TOS). A Madrid-based organization imported denatured rapeseed oil, colored by aniline yellow to stamp it as unsatisfactory for human utilization, to be utilized as a fuel in steel plants. Nonetheless, the organization refined the oil to eliminate the color, and sold it as a substantially more significant olive oil for cooking. The outcome was a rash of pneumonia-type diseases, with a second stage with sores, weight reduction, loss of motion, and muscle squandering. The net outcome was more than $20,000$ debilitated and $400$ dead. The science of the harmful response is as yet subject of a discussion.