(b) Colour of the precipitate formed on adding $N a O H$ solution to iron ( $I I)$ sulphate solution is

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Solution

Correct answer: (c) Green

When sodium hydroxide is added to a solution of ferrous sulphate it gives dirty green gelatinous ppt of $F e (O H)_{2}$ .

$F e S O_{4} + 2 N a O H \to F e (O H)_{2} + N a_{2} S O_{4}$ (Green) (Dirty green)

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Similar questions

Aqueous salt Solution	Colour of precipitate when NaOH is added in a small quantity	Nature of precipitate (soluble or insoluble) when NaOH is added in excess
Copper (II) sulphate Zinc nitrate Lead nitrate Calcium chloride Iron (III) sulphate	(i) (ii) (iii) (iv) (v)	(vi) (vii) (viii) (ix) (x)

Aqueous salt solution	Colour of precipitate when NaOH is added in a small quantity.	Nature of precipitate (soluble or insoluble) when NaOH is added in excess.
Copper(II) sulphate Zinc nitrate Lead nitrate Calcium chloride Iron(III) sulphate	(i) (ii) (iii) (iv) (v)	(vi) (vii) (viii) (ix) (x)

Select the correct answers :

(a) Colour of an aqueous solution of copper sulphate is

(i) Green (ii) Brown (iii) Blue (iv) Yellow

(b) Colour of the precipitate formed on adding $N a O H$ solution to iron (II) sulphate solution is

(i) White (ii) Brown (iii) Green (iv) Pale blue

(i) Iron (ii) Magnesium (iii) Zinc (iv) Copper

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