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Recent questions tagged basic-organic-chemistry

Which will have the highest heats of hydrogenation?

asked Dec 3, 2013 by sreemathi.v

1 answer

Arrange the following alkenes in increasing order of their enthalphy of hydrogenation

asked Dec 3, 2013 by sreemathi.v

1 answer

Under conditions where carbocation rearrangements are not observed, 3 products are obtained from the addition of HBr to 1,3-pentadiene. Which of the following structures are not expected to be among the products?

asked Dec 3, 2013 by sreemathi.v

1 answer

Arrange the following alkenes in the increasing order of their heat of hydrogenation

asked Dec 3, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 3, 2013 by sreemathi.v

1 answer

Rank the alkenes given below in terms of their relative stability starting with the most stable?

asked Dec 3, 2013 by sreemathi.v

1 answer

Examine the following reaction

asked Dec 3, 2013 by sreemathi.v

1 answer

Select the starting material for the following reaction

asked Dec 3, 2013 by sreemathi.v

1 answer

Select the best starting material for the following reaction

asked Dec 3, 2013 by sreemathi.v

1 answer

How many stereoisomers of the main product will form in the following reaction?

asked Dec 3, 2013 by sreemathi.v

1 answer

Consider the following transformation in which a cyclic bromoether is formed than the expected bromohydrin. Which of the electron pushing scheme represents the mechanism of this reaction?

asked Dec 3, 2013 by sreemathi.v

1 answer

Protonation of 1,2-butadine gives carbocation(A) and protonation of 2-butene gives carbocation(B). In both case the most stable crbocation possible is produced but no carbocation rearrangements take place. Which of the two carbocation is more stable and why?

asked Dec 3, 2013 by sreemathi.v

1 answer

There are three common ways to convert an alkene into alcohol: a) acid catalysed hydration, b)hydroboration -oxidation and c)oxymercuration-demercuration. Which of the following statements about these reactions is correct?

asked Dec 2, 2013 by sreemathi.v

1 answer

Consider the following reaction

asked Dec 2, 2013 by sreemathi.v

1 answer

1-Methyl cyclopentene can be

asked Dec 2, 2013 by sreemathi.v

1 answer

Arrange in decreasing order of reactivity with HCl

asked Dec 2, 2013 by sreemathi.v

1 answer

Refer to the below equation:

asked Dec 2, 2013 by sreemathi.v

1 answer

Which order are correct regarding the melting point?

asked Dec 2, 2013 by sreemathi.v

1 answer

Arrange the following alkenes in the increasing order of their heats of hydrogenation: 1.2-methyl butene,2.cis -2pentene,3.3-methyl butene

asked Dec 2, 2013 by sreemathi.v

1 answer

Vinyl cyclopropane on reaction with HBr yields which of the following as major product

asked Dec 2, 2013 by sreemathi.v

1 answer

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