Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

Apparatus, procedure,observation and conclusion for paper chromatography and crystallization  
Asked by akshah2407 | 06 Aug, 2019, 06:19: PM
answered-by-expert Expert Answer
(1) Paper Chromatography:
 
It is the simplest type of chromatography. In this method, a special type of paper called chromatographic paper or ordinary filter paper is used.
A line is drawn near the bottom edge of the paper. The paper is dipped in a solvent and taken in a beaker so that the line drawn on the paper is above the level of the solvent.
 
Stationary phase: Filter paper
Mobile phase: Solvent
 
 
 
As the solvent rises on the paper, it takes along with it the drop of the substances.
The component of the drop which is more soluble rises faster and we see various spots on the paper, each indicating a component of the mixture.
The paper is then removed from the solvent and dried.
 
 
(2) Crystallisation:
 
This method is based on the differences in the solubility of solids in a liquid.
The process of formation of crystals from a hot saturated solution caused by cooling is called crystallisation. It is a process in which a solution containing more of the solid component is slowly evaporated.
Pure sugar is obtained from its solution in water by the process of crystallisation.
 
Answered by Ramandeep | 07 Aug, 2019, 11:50: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Chemistry
experiment ink was stirred in water in test tube I and mustard oil was stirred in waterin test tube II. The test tubes were allowed to stand. Write your observation in each casethat is test tube I and test tube II.Also give a suitable reason for your observation.
Asked by aaravsharma10041980 | 06 Dec, 2021, 09:58: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Explain distillation method using two separate liquids and lower boiling point difference Acetone and ethanol
Asked by raily.lodh | 11 Nov, 2021, 09:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
What is chromatography
Asked by amirxoku | 03 Jul, 2021, 01:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
After opening the soft drink like Coca-Cola we see some bubbles this indicates that it is a heterogeneous mixture but why we call it as a homogeneous mixture
Asked by dharshini19 | 16 Feb, 2021, 07:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Name the process of the separation techniques you would follow to separate (1) mixture of petrol and water
Asked by thevaishnavibaghel | 27 Apr, 2020, 04:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
How to separate milk from water
Asked by susmitaroyb | 30 Sep, 2019, 09:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Apparatus, procedure,observation and conclusion for paper chromatography and crystallization  
Asked by akshah2407 | 06 Aug, 2019, 06:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
separation technique used to separate 1. mustard oil from water                                                                2. ceram from milk                                                                 3.components of ink                                                                4.aceton from water
Asked by ayushkumarjena07 | 20 Apr, 2019, 07:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Differentiate between simple distillation and fractional distillation in points
Asked by rohit.rt2004 | 21 Feb, 2019, 05:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
In CBSE Grade 9 SC text book mentioned 25 degree K is the minimum  difference of boiling point required to apply distilation technique to seperate mixture, but in most of the site it mentioned 25  degree Celcius  , which one is correct? 
Asked by Nimmi | 02 Jul, 2018, 11:02: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×