Question

Skin becomes yellow in conc. H2SO4 because of which reason

Answer 1

Answer:

Explanation:

The skin becomes yellow if conc. H2SO4 poured because it wipes out all the moister or water from that are of the skin making it waterless and yellow.

Thanks.

Answer 2

Here, your question is wrong. So, the right question is:

Question

Q. Skin becomes yellow in conc. $HNO_3(aq)$ because of which reason.

Answer

It is because when conc. $HNO_3(aq)$ is put into the skin, the skin turns yellow in colour because of the decomposition of oxides of Nitrogen in nitric acid. As we know that, the concentration of nitric acid depends upon the amount of Nitrogen dioxide present in it.

Explanation

Nitric acid is scientifically known as aqua fortis. Nitric acid is a highly corrosive mineral acid. Nitric acid is an highly oxidizing agent. Mostly in chemist shops where chemicals are sold in market, nitric acid is available which has a concentration of 68%. But very few nitric acids are found of more than 86% concentration. They are called fuming nitric acid. Fuming nitric acids are of two types:

1. Red fuming nitric acid
2. White fuming nitric acid

Red fuming nitric acid has a concentration of more than 86% and white fuming nitric acid has a concentration of more than 95%. Here, the white fuming nitric acid is white because there is no decomposition of oxides of Nitrogen, but in red fuming nitric acid is reddish yellow because of decomposition of oxides of Nitrogen.

Here, in this case Conc. $HNO_3(aq)$[86%] which is put into the skin and make the skin yellowish in colour.