Advertisements
Advertisements
प्रश्न
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Water and alcohol
उत्तर
Technique used to separate water and Alcohol is Fractional Distillation.
Because in this method, the vapours of water is left behind in the original vessel as the alcohol boils at lower temperature than water. Thus these two liquids can be separated.
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer.
The different constituents of ink are separated by
Write true or false
Milk is an emulsion.
Write true or false
The constituents of a mixture can only be separated by chemical means
How is distillation method different from evaporation?
Match the ideal method of separation of components in a mixture in List I with the appropriate process in List II.
List I | List II |
1. Sand from a mixture of sand and water | A: Separating funnel |
2. kerosene from a mixture of kerosene water | B: Sublimation |
3. Alcohol from a mixture of methyl alcohol and water | C: Filtration |
4. Naphthalene from a mixture of naphthalene and lead chloride | D: Distillation |
5. Pure water from impure water | E: Fractional distillation |
Explain with diagram the process used to – separate the following substance from the given mixtures - Lead nitrate [soluble] from a mixture of – lead nitrate & water Le. lead nitrate solution.
A mixture of milk and water can be separated by filtration.
Separation of sugar from tea can be done with filtration.
State whether the following statement is true or false.
A mixture of iron filings and rice flour can be separated by magnet.
Match the mixtures in column I with their method of separation in column II.
COLUMN I | COLUMN II | ||
(a) | Oil mixed in water |
(i) | Sieving |
(b) | Iron powder mixed with flour | (ii) | Hand picking |
(c) | Salt mixed with water | (iii) | Decantation |
(d) | Lady’s finger mixed with french beans | (iv) | Magnet |
(e) | Rice flour mixed with kidney beans | (v) | Evaporation |