Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate?
- I2 (Solid)
- U.V. Light
- Visualisation agent as a component of mobile phase
- Spraying of an appropriate reagent
The Correct Option is C
Solution and Explanation
The correct answer is (C) : Visualisation agent as a component of mobile phase.
The function of mobile phase is to carry the components present on TLC.
Top Questions on Chromatography and Its Principles
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Statement (I): In partition chromatography, the stationary phase is a thin film of liquid present in the inert support.
Statement (II): In paper chromatography, the material of paper acts as a stationary phase.
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Let one focus of the hyperbola $ \frac{x^2}{a^2} - \frac{y^2}{b^2} = 1 $ be at $ (\sqrt{10}, 0) $, and the corresponding directrix be $ x = \frac{\sqrt{10}}{2} $. If $ e $ and $ l $ are the eccentricity and the latus rectum respectively, then $ 9(e^2 + l) $ is equal to:
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The largest $ n \in \mathbb{N} $ such that $ 3^n $ divides 50! is:
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Concepts Used:
Qualitative Analysis
Qualitative Analysis involves the systematic identification of ions present in a mixture. It focuses on the properties and reactions of ions, particularly cations. The process begins with the systematic analysis of cations, where precipitation reactions are utilized to sequentially remove cations from a mixture. Students learn to recognize characteristic reactions and observe precipitates, helping identify specific ions.
Also Read: Quantitative Ananlysis
In the context of salt analysis, students employ various techniques to identify cations and anions in inorganic salts. This step-by-step process aids in understanding the composition of the given salts. Additionally, qualitative chemical analysis explores the subjective investigation of substances, examining their chemical properties.
Read More: Difference between Qualitative and Quantitative Research
Principles of Qualitative Analysis cover the physical and chemical properties of different elements, ions, and compounds. This knowledge is essential for providing a foundation for understanding the behavior of substances in chemical reactions. Practical applications, such as salt analysis, further reinforce theoretical concepts in qualitative analysis.