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3.2.6 Reactions of Ions in Aqueous Solution

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is the aqueous ion of iron (II)? What is its colour?

Back (Answer)

[ Fe (H2O)6 ] 2+ Green solution

#2
Front (Question)

What is the aqueous ion of copper (II)? What is its colour?

Back (Answer)

[ Cu (H2O)6 ] 2+ Blue solution

#3
Front (Question)

What is the aqueous ion of iron (III)? What is its colour?

Back (Answer)

[ Fe (H2O)6 ] 3+ Purple solution

#4
Front (Question)

What is the aqueous ion of aluminium (III)? What is its colour?

Back (Answer)

[ Al (H2O)6 ] 3+ Colourless

#5
Front (Question)

What is the action of aqueous NaOH or NH3 on iron (II)?

Back (Answer)

Fe (H2O)4 (OH)2 (s) Green precipitate

#6
Front (Question)

What is the action of aqueous NaOH or NH3 on copper (II)?

Back (Answer)

Cu (H2O)4 (OH)2 (s) Blue precipitate

#7
Front (Question)

What is the action of aqueous NaOH or NH3 on iron (III)?

Back (Answer)

Fe (H2O)3 (OH)3 (s) Brown precipitate

#8
Front (Question)

What is the action of aqueous NaOH or NH3 on aluminium (III)?

Back (Answer)

Al (H2O)3 (OH)3 (s) White precipitate

#9
Front (Question)

What ions are affected by an excess of NaOH?

Back (Answer)

Aluminium (III) [ Al (OH)4 ]- Colourless solution

#10
Front (Question)

What ions are affected by an excess of NH3?

Back (Answer)

Copper (II) [ Cu (H2O)2 (NH3)4 ] 2+ Deep blue solution

#11
Front (Question)

What is the effect of Na2CO3 on iron (II)?

Back (Answer)

FeCO3 Green precipitate

#12
Front (Question)

What is the effect of Na2CO3 on copper (II)?

Back (Answer)

CuCO3 Blue - green precipitate

#13
Front (Question)

What is the effect of Na2CO3 on iron (III)?

Back (Answer)

Fe (H2O)3 (OH)3 Brown precipitate and CO2 gas evolved

#14
Front (Question)

What is the effect of Na2CO3 on aluminium (III)?

Back (Answer)

Al (H2O)3 (OH)3 White precipitate and CO2 gas evolved

#15
Front (Question)

What are the four ions of vanadium caused by reduction?

Back (Answer)

V(V), V(IV), V(III) and V(II)

#16
Front (Question)

What is the species of V(V) in acidic solution? What is the colour?

Back (Answer)

[ VO2 (H2O)4 ]+ Yellow

#17
Front (Question)

What is the species of V(IV) in acidic solution? What is the colour?

Back (Answer)

[ VO (H2O)5 ] 2+ Blue

#18
Front (Question)

What is the species of V(III) in acidic solution? What is the colour?

Back (Answer)

[ V (H2O)6 ] 3+ Green

#19
Front (Question)

What is the species of V(II) in acidic solution? What is the colour?

Back (Answer)

[ V (H2O)6 ] 2+ Purple

#20
Front (Question)

What colours do Fe (III) compounds produce?

Back (Answer)

Purple or brown

#21
Front (Question)

What colours do Fe (II) compounds produce?

Back (Answer)

Green

#22
Front (Question)

What colours do copper (II) compounds produce?

Back (Answer)

Blue or blue-green

#23
Front (Question)

What colours do aluminium (III) compounds produce?

Back (Answer)

Colourless or white

#24
Front (Question)

What are the colours of vanadium ions in solution?

Back (Answer)

5: Yellow 4: Blue 3: Green 2: Purple