Reactions Of Metal Ions In aqeuous Solutions

Question 1

Iron (ll) with NaOH

Answer 1

NaOH and excess NaOH
Green ppt ( which goes brown )

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

Question 2

Iron (ll) and NH3

Answer 2

NH3 and excess NH3

Fe(H2O)4(OH)2 
Green precipitate ( which goes brown in air)

Question 3

Iron (ll) ion and NaCO3

Answer 3

Green ppt

FeCO3

Question 4

Copper (ll) aqueous ions

Answer 4

[Cu(H2O)6]2+

Blue solution

Question 5

Copper (ll) and NaOH ( also in excess)

Answer 5

Cu(H2O)4(OH)2

Blue ppt

Question 6

Copper (ll) and NH3

Answer 6

Cu(H2O)4(OH)2

Blue ppt

Question 7

Copper (ll) and NH3 in excess

Answer 7

[Cu(H2O)2(NH3)4]2+

Deep blue solution

Question 8

Copper (ll) and Na2CO3

Answer 8

CuCO3

Blue-green solution

Question 9

Iron (lll) aqueous ion

Answer 9

Purple solution

[Fe(H2O)6]3+

Question 10

Iron(lll) and NaOH

Answer 10

Fe(H2O)3(OH)3

Brown precipitate

Question 11

Iron (lll) and NH3

Answer 11

Fe(H2O)3(OH)3

Brown precipitate

Question 12

Iron (lll) and Na2CO3

Answer 12

Fe(H2O)3(OH)3 and carbon dioxide

Brown precipitate

Question 13

Aluminium(lll) aqueous ion

Answer 13

Colourless

[Al(H2O)6]3+

Question 14

Aluminium(lll) and NaOH

Answer 14

Al(H2O)3(OH)3
White ppt

Excess NaOH
Colourless solution
[Al(OH)4]-

Question 15

Aluminium(lll) and NH3

Answer 15

White ppt

Al(H2O)3(OH)3

Question 16

Aluminium(lll) and Na2CO3

Answer 16

Al(H2O)3(OH)3 and carbon dioxide

Whit precipitate

Question 17

Iron

Aqueous ion

Answer 17

Green solution

[Fe(H2O)6] 2+