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Recent questions tagged class11

A type of fuel containing

asked Dec 4, 2013 by sreemathi.v

1 answer

Alkanes containing 6 or more carbon atoms catalytically treated under pressure, passed over chromic oxide carried on an alumina support at temperature ranging 480-550 degree C,eventually

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkene is most reactive towards epoxidation with MCPBA (meta chloro per benzoic acid)

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following is most reactive diene?

asked Dec 4, 2013 by sreemathi.v

1 answer

Some alkanes may be prepared by adding an alkyl iodide dropwise to sodium in a suitable inert solvent

asked Dec 4, 2013 by sreemathi.v

1 answer

Find out the valid statement

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following statement is correct regarding the molecule A

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkanes can be synthesized by Wurtz reaction in good yield?

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkanes will give single product with a methele insertion?

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 4, 2013 by sreemathi.v

1 answer

An unknown compound decolourises bromine in carbon tetrachloride and it undergoes catalytic reduction to give decalin. When treated with warm, concentrated potassium permangate, this compound give cis-cyclohexane-1,2- dicarboxylic acid and oxalic acid. Propose a structure for the unknown compound.

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation:

asked Dec 4, 2013 by sreemathi.v

1 answer

Identify the product

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 3, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 3, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 3, 2013 by sreemathi.v

1 answer

The product of of the following reaction can be

asked Dec 3, 2013 by sreemathi.v

1 answer

Arrange in the decresing order of reactivity with HOCl

asked Dec 3, 2013 by sreemathi.v

1 answer

Which of the following alkanes will give single product with a methylene insertion?

asked Dec 3, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 3, 2013 by sreemathi.v

1 answer

Which order are correct regarding stability?

asked Dec 3, 2013 by sreemathi.v

1 answer

Which orders are correct regarding melting point?

asked Dec 3, 2013 by sreemathi.v

1 answer

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

The term independent of $x$ in the expansion $\bigg(\large\frac{x+1}{x^{\large\frac{2}{3}}-x^{\large\frac{1}{3}}+1}-\frac{x-1}{x-\sqrt x}\bigg)^{10}$ is ?

asked Dec 1, 2013 by rvidyagovindarajan_1

1 answer

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