Chemistry 1492 Condensed Molecular Structural Formula Formula Sketch -mthy butan

Question

Chemistry 1492 Condensed Molecular Structural Formula Formula Sketch -mthy butane bp. = 279 °C CH, CH-CH,-CH, CH12 CH, [fuels and fuel additives] CH, CH,CCH, CH CH bp. = 95 |petroleum naphtha] 2.2,4-trimethyl CC-C- bp 99 °C [component Of gasoline] -1 e) pentane Alkenes Ethene (ethylene) CH CH CH, [manufacture of polyethylene] bp..-103.7 t t tty 1-Butene CH2 CHCH,CH, CHs I b.p-=-65 [found in petroleum] 2-Butene b.p.-cis: 3.7 l trans: 0.4 [found in coal gas] / t Name the product from the hydrogenation of 2-Butene: Alkynes Ethyne (acetylene) b.p.=-119.2 °C CH CH CH [welding torches] 180 REPORT SHEET

Explanation / Answer

C5H12 with the given branched structure is 2,2-dimethylpropane. the main chain is the one having more number of C atoms connected, giving propane as the parent chain. The methyl groups are at the second position of the parent chain, hence the name.

The product of hydrogenation of 2-Butene is Butane, as the Hydrogen would attack across the double bond, givingan alkene from an alkane on hydrogenation.

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