Zalogować się

WAEC - Chemistry (1998 - No. 8)

How many electrons are removed from Cr2- when it is oxidized to CrO42-?

o

2

4

8

10

Wyjaśnienie

from Cr2- to CrO42- involves 8 electrons to give oxidation state of Cr is +6

Uwagi (0)

Reklama