Colourless components on chromatogram can not be observed by the following :
- AUsing UV light
- BUsing iodine chamber
- CUsing the spraying reagent
- ✓Using infrared light
Answer: D.
View full solution →Question types
Basic Analytical Techniques question types
49 questions across 4 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.
49
Questions
4
Question groups
5
Question types
01
MCQ
21 Q→02Answer the following in one or two sentences.
3 Q→03Answer the following in brief.
18 Q→04Answer the following questions.
7 Q→Sample Questions
Basic Analytical Techniques questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
A mixture of acetone and benzene can be seperated by the following method :
- ASimple distillation
- ✓Fractional distillation
- CDistillation under reduced pressure
- DSublimation
Answer: B.
View full solution →Which technique is widely used in industry to seperate components of mixture and also to purify them ?
- ASteam distillation
- ✓Chromatography
- CSolvent extraction
- DFiltration
Answer: B.
View full solution →Which of the following techniques is used for seperation of glycerol from soap in soap industry ?
- ✓Distillation under reduced pressure
- BFractional distillation
- CFiltration
- DCrystallization
Answer: A.
View full solution →Which of the following methods can be used to separate two compounds with different solubilities in the same solvent?
- ✓Fractional crystallization
- BCrystallization
- CDistillation
- DSolvent extraction
Answer: A.
View full solution →Give names of two materials used as stationary phase in chromatography.
How is saturated solution of the crude solid prepared?
What are the different types of impurities that a solid may contain?
How do you visualize colourless compounds after separation in TLC and Paper Chromatography?
Why do we see bands separating in column chromatography?
Name the different types of Chromatography and explain the principles underlying them.
List the properties of solvents which make them suitable for crystallization.
Define a. Solvent extraction
b. Distillation.
b. Distillation.
Compare TLC and Paper Chromatography techniques.
Label the diagram and explain the process in your words.
Based on the above diagram, answer the following questions:
$i.$ Name the chromatographic technique involved.
$ii.$ From the developed chromatogram, state which has the highest and which has the lowest $R_f$ value?
$iii.$ Based on the $\text{TLC,}$ which component would elute out at the end of a column chromatography?
$iv.$ Mention two applications of $\text{TLC}$ method.
Write a short note on Rf value.
Describe the process of paper chromatography.
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