SCIENCE
Paper 2 (Chemistry) - 2004
(One hour and a half)

Question 1
(f) 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).

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Question 1(a) Choose letters matching the description.Question 1(b) Answer the following.Question 1(c) Complete the following.Question 1(d) Answer the following.Question 1(e) Write balanced equations.Question 1(f) Complete the table.Question 1(g) Answer the following.Question 2(a) Answer the following.Question 2(b) Answer the following.Question 3 Answer the following.Question 4 Answer the following.Question 5(a) & (b) Answer the following.Question 5(c) Answer the following.Question 6(a) Answer the following.Question 6(b) Answer the following.Question 7 Answer the following. : Fill in the blanks

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24. 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 (i) (vi) Zinc nitrate (ii) (vii) Lead nitrate (iii) (viii) Calcium chloride (iv) (ix) Iron (III) sulphate (v) (x)

 
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