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A chemist opened a cupboard to find four...

A chemist opened a cupboard to find four bottles contain ing water solutions, each of which had lost its label. Bottles lying scattered on the floor of the cupboard. They were: 1, 2 and 3 contained colourless solutions, whilst Bottle 4 contained a blue solution. The labels from the bottles were
copper (II)sulphate
sodium carbonate lead nitrate
hydrochloric acid
By mixing samples of the contents of the bottles, in pairs, the chemist made the following observations:
I. Bottle 1 + Bottle 2 white precipitate
II. Bottle 1 + Bottle 3 white precipitate
(III) Bottle 1 + Bottle 4 white precipitate
(IV) Bottle 2+ Bottle 3 colourless gas evolved
(V) Bottle 2+ Bottle 4 no visible reaction
(VI) Bottle 3+ Bottle 4 blue precipitate

A

`PbCl_(2)`

B

`PbCO_(3)`

C

`CuCO_(3).Cu(OH)_(2)`

D

`PbSO_(4)`

Text Solution

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The correct Answer is:
D
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A chemist opened a cupboard to find four bottles containing water solutions, each of twhich had lost its lable. Bottles 1,2,3 contained colourless solutions , while bottle 4 contained coloured solution. They were, Copper (II) sulphate, Hydrochloric acid. Lead nitrate, Sodium carbonate. By mixing samples of the contents of the bottles, in pairs. The chemist made the following observations, Bottle 1+ Bottle 2 white precipitate Bottle 1= Bottle 3 white precipitate Bottle 1+ Bottle 4 white precipitate Bottle 2+ Bottle 3 colour less gas evolved Bottle 2+ Bottle 4 no visible reaction Bottle 3+ Bottle 4 blue precipitate. When bottle 1 is mixed with bottle 4, white precipitate is observed, which is :

A chemist opened a cupboard to find four bottles containing water solutions, each of twhich had lost its lable. Bottles 1,2,3 contained colourless solutions , while bottle 4 contained coloured solution. They were, Copper (II) sulphate, Hydrochloric acid. Lead nitrate, Sodium carbonate. By mixing samples of the contents of the bottles, in pairs. The chemist made the following observations, Bottle 1+ Bottle 2 white precipitate Bottle 1= Bottle 3 white precipitate Bottle 1+ Bottle 4 white precipitate Bottle 2+ Bottle 3 colour less gas evolved Bottle 2+ Bottle 4 no visible reaction Bottle 3+ Bottle 4 blue precipitate. Bottle 3 contains :