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Antiaromaticity - Hydrocarbon
Planar cyclic conjugated substances, less stable as compared to the relating acyclic unsaturated species are known as antiaromatic. Molecular orbital computation has provided that such compounds comprise 4nΠ electrons. In fact these cyclic elements that have electrons are termed as antiaromatic compounds and this characteristic is termed antiaromaticity.
Terylene: Preparation: terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol. Properties: a fully aliphatic polyester are not of muc
Acetic acid has less conductivity, due to it ionizes less in solution. HCl divides almost completely in solution to form the ions Cl- and H+..
How many ion H2- does have The H2- ion having three electrons. This can be conceived as the combination of a hydrogen atom with a hydride ion (H-). By the aufbau principle, two
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
calculate the electrode potential of a platinum electrode immersed in a solution containing Ce4 + ions (cCe4 + = 0.05M) and Ce3 + ions (cCe3 + = 0.1M)
8ml of NaOH solution were used to titrate 10ml of H2C2O4.2H2O,C(1/2H2C2O4.2H2O)=0.05ML.
Two element have electronegativity of 1.2 and 3.0. Bond formed between them would be: (1) Ionic (2) Polar covalent ( 3) Co-ordinate (4) Metallic A ns: Ionic
Number of unpaired electrons in 1s 2 2s 2 2p 3 is: (1) 2 (2) 0 (3) 3 (4) 1 Ans: 3
how to count two oxidation no. of Cl in Ca(OCl)Cl?
what is heat of reaction
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