Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of copper (II) sulphate

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asked Feb 1 in Class X Science by priya12 (-12,654 points)

Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of copper (II) sulphate, zinc nitrate, lead nitrate, calcium chloride and iron (III) sulphate. Copy the following table and write the colour of the precipitate in (i) to (v) and the nature of the precipitate (soluble or insoluble) in (vi) to (x).

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

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answered Feb 1 by muskan15 (-3,451 points)
Aqueous salt solutionColour of precipitate when NaOH is added in a small quantity.Nature of precipitate (soluble or insoluble) when NaOH is added in excess.
Copper (II) sulphateBlueInsoluble
Zinc nitrateWhiteSoluble
Lead nitrateWhiteSoluble
Calcium chlorideWhiteInsoluble
Iron (El) sulphateReddish BrownInsoluble

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