EASY
9th CBSE
IMPORTANT
Earn 100
Sample 'A' contains iron filings and sulphur powder, Sample 'B' is iron sulphide. Sample 'A' and 'B' are taken on a watch glass and a bar magnet is rolled over both.
You will observe that:
50% studentsanswered this correctly
Important Questions on Is Matter Around Us Pure?
EASY
9th CBSE
IMPORTANT
In a china dish, of iron filings and of sulphur powder are mixed properly. Suggest a method to separate the individual constituents from its mixture.
EASY
9th CBSE
IMPORTANT
A mixture of sand, ammonium chloride and sodium chloride is dissolved in water and filtered. The filtrate consists of:
EASY
9th CBSE
IMPORTANT
To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?
EASY
9th CBSE
IMPORTANT
A mixture contains iodine, ammonium chloride and sand. Only iodine and ammonium chloride sublime. Only iodine dissolves in carbon tetrachloride.
How will you separate the three components? Sequence of steps will be:
EASY
9th CBSE
IMPORTANT
A mixture of ammonium chloride and sodium chloride is heated in the apparatus as shown below:
After the experiment, ammonium chloride will be obtained in the
EASY
9th CBSE
IMPORTANT
Mixture of common salt and water can be separated completely by the process of:
EASY
9th CBSE
IMPORTANT
A mixture containing iron filings and sulphur powder is spread on the white paper and a magnet is rolled in it. The particles which cling to the magnet are:
EASY
9th CBSE
IMPORTANT
Define a mixture. Is it's composition fixed or variable?
