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Terylene:
Preparation: terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol.
Properties: a fully aliphatic polyester are not of much industrial importance because of their low melting points (50_80 degree c) introducing aromatic rings into the polyester chain a remarkable rise in the melting point of polyesters is produced due to resistant to heat and moisture and unattached by many chemicals.
(1) It has good mechanical strength up to 175degree c.
(2) Fibbers of Terylene have wrinkle resistance and high stretch resistance.
USES OF TERYLENE:
(1) Extensively used to make textile fibres.
(2) Used in the making of films which are used in the manufacture of magnetic recording tapes aluminised sheets for certain applications?
Examples for the compound which is both doublesalt and complex compound? Ans) A Compound that is double salt cannot be a complex compound.
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
the periodic table
During the electrolysis of water, what are the two half-reactions taking place? HALF-REACTION AT THE ANODE: HALF-REACTION AT THE CATHODE: What is the relative ratio betwee
Replication: The genetic information for the cell is comprised in the sequence of the bases A, T, G and C that are adenine, thymine, guanine and cytosine correspondingly in the
how to report phase change
conclusion of the topic?
ClCH 2 CH 2 CH 2 COPh + Methanoic acid ----------------> CH2-(CH2)-CH2-CO-C 6 H 6
Haber-Bosch Process Ammonia is one of the most significant intermediates. It is used, for example, for the production of fertilizers. Usually, ammonia is formed from hydrogen a
Formation of esters (Esterification) (1) The reaction is shifted to the right via using excess of alcohol or removal of water by distillation. (2) The re
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