Question

what is the action of sodium hydroxide on metalliv salt solution​

Answer 1

Answer:

The precipitate of ferrous hydroxide is green in colour and the precipitate of ferric hydroxide is brown in colour. Thus, when FeSO

4

reacts with NaOH, it gives green precipitate of Fe(OH)

2

. Similarly, when FeCl

3

reacts with sodium hydroxide, it gives brown precipitate of Fe(OH)

3

.

FeSO

4

+2NaOH→

green

Fe(OH)

2

↓+Na

2

SO

4

FeCl

3

+3NaOH→

brown

Fe(OH)

3

↓+3NaCl

Answer 2

Answer:

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