Which of the following statements is/are correct?

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Liebig’s method is used for the quantitative estimation of both C and H.

Dumas method is used for the quantitative estimation of N in all nitrogen-containing organic compounds.

In Liebig’s combustion method, CuO is used.

Silver salt method is a chemical method for the determination of equivalent mass of organic acids.

answer is A, B, D, C.

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Detailed Solution

Liebig's method is used to estimate carbon and hydrogen by heating a known amount of organic molecules in the presence of pure oxygen, then collecting and weighing the carbon dioxide and water generated, and calculating percentages of carbon and hydrogen from the masses of carbon dioxide.

The silver salt method is a Chemical method of detection of organic acids. The principle of this method is based on the fact that most carboxylic acids form water-insoluble silver salts when treated with ammoniacal silver nitrate. On heating, these salts decompose to leave a residue of metallic silver.

the Dumas method is an analytical method for quantitative measurement of nitrogen in a chemical material.

organic compound is burnt in the presence of excess of oxygen and copper(II) oxide

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