chromatography, Chemistry

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Factors affecting TLC

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The outer electronic structure 3s2 3p5 is possessed, The outer electronic...

The outer electronic structure 3s 2 3p 5    is possessed by: (1) Cl       (2) O        (3) Ar      (4) Br ans:  Cl

Nomenclature of simple aromatic compounds, Nomenclature of simple aromatic ...

Nomenclature of simple aromatic compounds Aromatic compounds are those that consist of one or more benzene rings in them. An aromatic substance has two major types: (1) Nucl

Difference between oils and fats, Difference between Oils and Fats Oils...

Difference between Oils and Fats Oils and fats belong to similar chemical group, although they are different in their physical state. (i) Oils are liquids at normal temperat

The number of electrons involved, The number of electrons involved in the b...

The number of electrons involved in the bond formation of N 2   molecule : (1) 2   (2) 4    (3) 6                               (4) 10 Ans: 6

Help with Worksheet, Given "X" could be any element determine the charge on...

Given "X" could be any element determine the charge on ''X'' given the following chemical formula: X3P

Equivalent mass by hydrogen displacemnt, 0.205g of a metal on treatment wit...

0.205g of a metal on treatment with dilute acid gave 106.6ml of hydrogen collected over water at 755mm pressure and 17 degree Celsius. calculate the equivalent mass of the metal. (

Acyl chloride , what is the mechanism of acyl chloride reaction with alcoho...

what is the mechanism of acyl chloride reaction with alcohol and why does it react in this way ?

Radius of the first bohr''s orbit of hydrogen atom, Radius of the first Boh...

Radius of the first Bohr's orbit of hydrogen atom is: (1)1.06 Å                           (2) 0.222 Å (3) 0.28 Å                           (4)0.53A Ans: 0.53 Å

Why does the solution become purple after drops of iodine, 1(a). In these r...

1(a). In these reactions, I2 (in the iodine solution) has what oxidation number? 1(b). The iodine starch reaction that turns purple depends on iodine being in the I- state. Was

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