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Simple Distillation - Purification of organic compounds Distillation is the joint procedure of vapourisation and condensation. This method is employed for the purification o
why in f-block element electronic configuration electrons does not enter in 5d orbital (except for La,Gd,Lu)
Acidic Nature of Phenol - Hydrocarbon The acidic nature of phenol is observed in the following: (1) Phenol changes blue litmus to red. (2) Highly electropositive metals r
Q. Define the Planck constant? The energy of a photon ( E photon) of a certain frequency (violet) is able to be calculated by using the following equation in which h represen
Q. Explain the structure of Alkenes? Ans. Alkenes have the general formula C n H 2n . Therefore, for every n carbon atoms, there are 2n hydrogen atoms. Alkenes have C =
Explain the Liquid junctions? Some galvanic cells contain two electrolyte solutions with different compositions. These solutions must be separated by a porous barrier or some o
Classification of polymers - Fibres These are the polymers that comprise strong intermolecular forces among the chain. These forces are either hydrogen bonds or dipole-dipole i
chemical reaction needed to lift a balloon
why is NH4CL ADDED BEFOR NH4OH
A solution is prepared with 3.85g of a non-ionic unknown compound in 100.0g cyclohexane. The solution had a freezing point of 4.18 degrees Celsius. What is the molar mass of the un
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