Chemistry
Grade-8
Easy
Question
Study the given flow chart and choose the correct statements.
I. X is water and Y is carbon disulphide.
II. The property used to separate the mixture is solubility of different components in different solvents.
III. Sulphur is soluble in carbon disulphide and salt and coal are insoluble in water and carbon disulphide.
- Only I and II
- Only I and III
- Only II and III
- Only III
Hint:
Only I and II.
The correct answer is: Only I and II
Common salt is soluble in 'X' (i.e., water) while sulphur is soluble in 'Y' (i.e., carbon disulphide), both the solutes will be recovered from the filtrate by evaporation. But, coal is insoluble in both. It will be left behind as residue.
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