(i) Excess ammonium hydroxide solution is added to lead nitrate solution.

Question 1

State one observation for each of the following :

(ii) Bromine vapours are passed into a solution of ethyne in carbon tetrachloride.

(iii) A zinc granule is added to copper sulphate solution.

(iv) Zinc nitrate crystals are strongly heated.

(v) Sodium hydroxide solution is added to ferric chloride solution at first a little and then in excess.

Question 2

(i) A white ppt of lead hydroxide.

(ii) A colourless solution is obtained and brown colour of bromine vapours disappears.

(iii) A red metal starts precipitating and the blue colour of the copper sulphate solution fades due to the formation of colourless zinc sulphate.

(iv) A reddish brown gas is liberated.

(v) A reddish brown ppt. of ferric hydroxide is formed which *** insoluble in excess of sodium hydroxide.

kratos · Answer 1 · 2020-09-16T16:31:55+0000

(i) A white ppt of lead hydroxide.

(ii) A colourless solution is obtained and brown colour of bromine vapours disappears.

(iii) A red metal starts precipitating and the blue colour of the copper sulphate solution fades due to the formation of colourless zinc sulphate.

(iv) A reddish brown gas is liberated.

(v) A reddish brown ppt. of ferric hydroxide is formed which *** insoluble in excess of sodium hydroxide.

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