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CBSE - IX - Chemistry - Is Matter Around Us Pure?
How will you separate a mixture containing common salt,kerosene and petrol?
- Filtration and separating funnel
- Sublimation fractional distillation
- Filtration and fractional distillation
- Distillation and sublimation
- Filtration and separating funnel
- Sublimation fractional distillation
- Filtration and fractional distillation
- Distillation and sublimation
Asked by Turjo Bhattacharjee
28th July 2015,
9:23 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
define difference between evaporation and chromatography
Asked by pahiroy1221
19th July 2015,
7:28 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
which technique can be used to detect and re identify traces of poison present in the stomach wash of a person
Asked by pahiroy1221
18th July 2015,
4:53 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
which technique can be used to detect and re identify traces of poison present in the stomach of a person
Asked by pahiroy1221
18th July 2015,
4:41 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
which technique can be used to detect and re identify traces in the stomach wash of a person
Asked by pahiroy1221
18th July 2015,
4:38 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Describe an experiment to separate coloured component (dye) from blue/black ink of a pen by evaporation.
Asked by Topperlearning User
5th May 2015,
9:52 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
How will you separate dyes in black ink using chromatography? Explain it with the help of a diagram.
Asked by Topperlearning User
5th May 2015,
9:49 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
what is a sol?
Asked by kaushal_012
21st August 2014,
9:32 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Does Sugar and Salt mix when they are heated in a beaker together?
Asked by Aditya Singh
28th June 2014,
1:55 PM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
What is meant by crystallisation? How is impure copper sulphate purified by the process?
Asked by Topperlearning User
8th May 2014,
9:00 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
List two ways in which crystallisation technique is better than simple evaporation technique.
Asked by Topperlearning User
8th May 2014,
8:59 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
State the separation technique you would apply for the separation of the following? (a) Sodium chloride from its solution in water (b) Tea leaves from tea (c) Iron pins from sand (d) Different pigments from an extract of leaves (e) Butter from curd (f) Fine mud particles suspended in water.
Asked by Topperlearning User
8th May 2014,
8:58 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Mention 3 important applications of chromatography.
Asked by Topperlearning User
8th May 2014,
8:57 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
List any two applications of crystallization.
Asked by Topperlearning User
8th May 2014,
8:56 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
What is chromatography? Which is the simplest form of chromatography? What types of mixtures can be separated using this type of chromatography? What is the basis of this separation technique?
Asked by Topperlearning User
8th May 2014,
8:55 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
(a) Why we cannot separate common salt from common salt - water mixture using filtration? (b) How is evaporation process used to obtain common salt from sea water on a large scale?
Asked by Topperlearning User
8th May 2014,
8:54 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
(a) What is the purpose of adding porcelain pieces in the distillation flask in the beginning of distillation process? (b) During distillation of salt water mixture, what remains behind in the distillation flask after completion of the distillation process and why?
Asked by Topperlearning User
8th May 2014,
8:53 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
What do you infer from the statement "In the process of chromatography, a sample of black ink drop split up into three coloured spots on filter paper strip"?
Asked by Topperlearning User
8th May 2014,
8:52 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
How can we test the formation of saturated solution during the process of crystallisation?
Asked by Topperlearning User
8th May 2014,
8:51 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
On what basis does the separation of different components of black ink takes place in chromatography?
Asked by Topperlearning User
8th May 2014,
8:50 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
How will you separate the following: (i) Salt and sea water mixture (ii) Poison from contents of bladder (iii) Components of ink (iv) Pure alum from impure sample
Asked by Topperlearning User
8th May 2014,
8:48 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Why is evaporation not preferred for separation of both salt and water from a salt water mixture? What other process can be used?
Asked by Topperlearning User
8th May 2014,
8:46 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Simple distillation is used for what types of mixtures?
Asked by Topperlearning User
8th May 2014,
8:45 AM
CBSE - IX - Chemistry - Is Matter Around Us Pure?
Describe the structure of the 'water condenser' used in the process of distillation. Why is water circulated through the condenser during distillation?
Asked by Topperlearning User
8th May 2014,
8:45 AM
