• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

one question

XPFMember

XPRS Moderator
Messages
4,555
Reaction score
13,290
Points
523
Assalamoalaikum wa rehmatullah i wa barakatuhu,
can somebody pls ans. this question,i dont know it and my teacher once gave it in a worksheet!
"From a mixture of bauxite,iron(III)oxide and germanium(IV)oxide..how can u seperate iron(III)oxide???
 
Messages
13
Reaction score
0
Points
0
I am really not sure. But i guess that when this mixture is dissolved in water, only iron(III) oxide will form a red precipitate. The red precipitate can then be decanted off .
N.B ( Not sure )
 
Messages
127
Reaction score
35
Points
38
I know! Add sodium hydroxide...
Bauxite is amphoteric Al2O3, so it dissolves
Germanium oxide is a non metal oxide ( acidic ) , so it dissolves too
Iron oxide is basic, so nothing happens :)
 

XPFMember

XPRS Moderator
Messages
4,555
Reaction score
13,290
Points
523
oh thanks,avtually i was mistaken that germanium(IV)oxide is neutral which is actually acidic and it is germanium(II)oxide which is neutral :shock:
nyways JazakAllah Khairan to all!
 
Messages
298
Reaction score
15
Points
28
Math_angel said:
oh thanks,avtually i was mistaken that germanium(IV)oxide is neutral which is actually acidic and it is germanium(II)oxide which is neutral :shock:
nyways JazakAllah Khairan to all!

Ah... what will the answer be?
 

XPFMember

XPRS Moderator
Messages
4,555
Reaction score
13,290
Points
523
waleedsmz said:
I know! Add sodium hydroxide...
Bauxite is amphoteric Al2O3, so it dissolves
Germanium oxide is a non metal oxide ( acidic ) , so it dissolves too
Iron oxide is basic, so nothing happens :)
this is the correct ans. ,they dissolve coz they react!
 
Messages
298
Reaction score
15
Points
28
Math_angel said:
waleedsmz said:
I know! Add sodium hydroxide...
Bauxite is amphoteric Al2O3, so it dissolves
Germanium oxide is a non metal oxide ( acidic ) , so it dissolves too
Iron oxide is basic, so nothing happens :)
this is the correct ans. ,they dissolve coz they react!

So Germanium (IV) oxide is Amphoteric?!
 

XPFMember

XPRS Moderator
Messages
4,555
Reaction score
13,290
Points
523
germanium (IV)oxide is acidic while Germanium(II)oxide is neutral
likewise Co2 acidic and CO neutral!
 
Top