Question

What is the color of $Cr{O_5}$?

Answer 1

Hint: We know that Chromium (VI) peroxide or chromium oxide peroxide is an unsteady compound with the recipe\[Cr{O_5}\] . This compound contains one oxo ligand and two peroxy ligands, making an aggregate of five oxygen molecules for each chromium particle.

Complete answer:
The color of $Cr{O_5}$ is blue.
Chromium (VI) peroxide is framed by the expansion of fermented hydrogen peroxide answers for arrangements of metal chromates or dichromates, like sodium chromate or potassium dichromate. The by and large yellow chromates or orange dichromates go to dull blue as chromium (VI) peroxide is shaped. Chromate or dichromate responds with hydrogen peroxide and a corrosive to give chromium peroxide and water.
\[Cr{O_4}^{2 - }{\text{ }} + {\text{ }}2{\text{ }}{H_2}{O_2}{\text{ }} + {\text{ }}2{\text{ }}{H^ + } \to {\text{ }}Cr{O_5} + 3{\text{ }}{H_2}O\]
With this technique, the chromium (VI) peroxide will disintegrate following a couple of moments, becoming green as chromium (III) compounds are formed.
\[2Cr{O_5} + 7{H_2}{O_2}{\text{ + }}6{\text{ }}{H^ + } \to 2C{r^{3 + }} + 10{H_2}O + 7{O_2}\]

Note:
To stay away from this disintegration, it is feasible to balance out chromium(VI) oxide peroxide in water-immiscible natural solvents, for example, diethyl ether, butan-1-ol or amyl acetic acid derivation by adding a layer of the natural dissolvable over the chromate/dichromate arrangement and shaking during the option of hydrogen peroxide. Thus, the chromium (VI) peroxide (insecure in the watery stage in which it is recently framed) is broken up in the immiscible natural dissolvable. In this condition, it tends to be seen over any longer period.
\[Cr{O_5}\] Is shaky and deteriorates on the remaining frame \[Cr{O_3}\] . It is contrary to ketones and essential alcohols, as it oxidizes them to aldehydes and carboxylic acids while acting naturally diminished to \[C{r^{3 + }}\]. In this way, \[Cr{O_5}\] is a decent oxidizing specialist, stunningly better than chromates and dichromates because of the presence of two receptive peroxy ligands, however because of its low steadiness it's anything but utilized in natural unions.