Question
Question: Zinc Oxide, white in colour at room temperature, acquires yellow colour on heating due to:...
Zinc Oxide, white in colour at room temperature, acquires yellow colour on heating due to:
A
Zn being a transition element
B
Paramagnetic nature of the compound
C
Trapping of electrons at the site vacated by Oxide ions
D
Both (1) & (2)
Answer
Trapping of electrons at the site vacated by Oxide ions
Explanation
Solution
Some of O2– combine with each other forming O2 gas which is liberated learning behind electrons at the site vacated by oxide ions.