Q.S. The IUPAC name for the molecule below is H-d-H H-C-H H-C-H a) octane b) 3-e

Question

Q.S. The IUPAC name for the molecule below is H-d-H H-C-H H-C-H a) octane b) 3-ethyl-4-methylpentane c) Methylheptane d) 3-ethyl-2-methylpentane Q.6.Ethylene on reaction with bromine forms which among the following product a) Brll,C-CHB b) BrH:C-CHaBr c) BraHC-CHBr d) Br,HC-CHB Q.7. What will be the major product obtained from the acid-catalysed hydration of pent-1-ene? a) Pentan-1-ol b) Pentan-1,2-diol c) Peatan-2-4l d) Pentane Q· which of the following metals is used as a catalyst in the catalytic hydrogenation of both alkenes and alkynes? a) Palladium

Explanation / Answer

Ans 5 : d) 3-ethyl-2-methylpentane

To name the organic compound according to the IUPAC nomenclature , start by identifying the parent hydrocarbon chain . Then identify the functional and substituent groups of the compound. Now number the groups , such that each of them receives the least possible carbon numbering.

So the name of the compound becomes : 3-ethyl-2-methylpentane.

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