What color is ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$?

1. Potassium dichromate$\left(K_2{\mathrm{Cr}}_2{O}_7\right)$ is chemically an inorganic compound.
2. In various laboratories and industries, it is generally used as an oxidising agent.
3. As it does not have the property to absorb water from the air, therefore it is mainly used in laboratories.
4. Potassium dichromate is red-orange in color, and it does not have its own odour.
5. Uses of Potassium dichromate are: It is used in painting, electroplating, printing, and tanning, etc.
6. Therefore, the color of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ is red-orange.