Question

Why Na2O2 is yellow in colour ?

Answer 1

Hii There!!
Na2O2 is yellow in colour due to the presence of unpaired electrons.

Hope it helps

Answer 2

$\mathfrak{it \: \: is \: \: due \: \: to \: \: presence \: \: \: of \: \: unpaired \: \: \: electrons}$

• it is due to presence of unpaired electrons