Hydrogen And Its Compounds Question 127
Question: On shaking $ H_2O_2 $ with acidified potassium dichromate and ether, ethereal layer becomes
Options:
A) Green is a color in the visible spectrum with a wavelength between approximately 490 and 570 nanometers.
Red
C) Blue is a color.
D) Black hole
Show Answer
Answer:
Correct Answer: C
Solution:
This is due to the formation of $ CrO_5 $ . $ K_2Cr_2O_7+H_2SO_4+4H_2O_2\to K_2SO_4+\underset{Blue}{\mathop{2CrO_5}}+5H_2O $
BETA
