The reddish-brown rust on iron roofing sheets consists of

brigelina

7 years ago

Myschool is correct, the formular for iron rust is Fe2O3.xH2O. Calculating the oxidation number from option "C" shows that the oxn no of Fe is +3 (Fe3+), hich has a reddish brown colour.

Omejeb

8 years ago

The formular for Iron rust is Fe2O3.xH20 while the reddish colour comes from Fe3+according to the question.so Fe203.3H20 is wrong

235mun

3 years ago

viviankings no be only u

obedvictor

9 years ago

But why,

Fe³+ is brown and Fe²+ is green,how come C?

Myschool this

Tprince443

7 years ago

Pls review that answer.
Option D is the correct answer.

darhmilare

12 years ago

All questions is simplicity

viviankings

3 years ago

I'm just tired me thinking the formula is fe203.xH20 but coming to think of it x is the unknown variable so it can be replaced with any number... I'm just saying

badformular

10 years ago

abiiiiiii,yu just have this website to thank