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Chromatography is used
Chromatography is a versatile technique used to separate mixtures, purify compounds, and test the purity of compounds. It involves the partitioning of components between a stationary phase and a mobile phase, allowing for effective separation and analysis.
In chromatography $ R_f $ means
In chromatography, the term $ R_f $ stands for 'Retardation factor'. It is the ratio of the distance traveled by the solute to the distance traveled by the solvent front. It helps in identifying compounds based on their movement on the stationary phase.
Statements regarding Chromatography are given below. Identify True or False statements and give your answer (1) Silica - gel is used as adsorbent in TLC. (2) Rf = Retardation factor. (3)Adsorbent is a mobile phase. (4) Chromaplate is not a part of TLC.
The correct option is TTFF. (1) is True because silica gel is commonly used as an adsorbent in Thin Layer Chromatography (TLC). (2) is True because $ R_f $ indeed stands for Retardation factor. (3) is False because the adsorbent is a stationary phase, not a mobile phase. (4) is False because a chromaplate (TLC plate) is indeed a part of TLC.
In Chromatography, ninhydrin solution is used to detect
In chromatography, ninhydrin solution is used to detect amino acids. Ninhydrin reacts with amino acids to produce a colored product, often purple or blue, which helps in visualizing the presence of amino acids on the chromatogram.
 In a method of detecting C and H, organic compound is heated with ...
In the method of detecting carbon and hydrogen in an organic compound, the compound is heated with CuO (copper(II) oxide). The carbon present in the compound is oxidized to CO2, and the hydrogen is oxidized to H2O.
In a detection of C and H, the water produced is tested by
In the detection of carbon and hydrogen, the water produced is tested by anhydrous $ CuSO_4 $ (copper(II) sulfate). Anhydrous $ CuSO_4 $ is white and turns blue in the presence of water, indicating the formation of water.
Lassaigne test is used for detection of
Lassaigne test is used for detection of
The basic principle of Lassaigne test is
The basic principle of the Lassaigne test is to convert the elements present in the organic compound from their covalent form to their ionic form. This conversion allows for easier detection of elements such as sulfur, nitrogen, and halogens.
The prussian blue colour obtained in Lassaigne test is due to
The Prussian blue color obtained in the Lassaigne test is due to the formation of $Fe_4[Fe(CN)_6]$. This compound is formed when the ionic cyanide formed during the test reacts with ferrous sulfate, producing the characteristic Prussian blue color.
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