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Recent questions tagged organic-chemistry

Which of the following bases is not present in DNA?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

$ \alpha $-helix refers to

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Amyloprotein is a polymer of

asked Mar 27, 2014 by thanvigandhi_1

1 answer

When hemiacetal reacts with alcohol the product is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The constituent units of sucrose are

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Fructose has/is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The amino acids are the end products of the digestion of

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Maltose on hydrolysis gives

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The linkage which binds various amino acids in secondary structure of proteins is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Which of the following is an example of aldohexose?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Which of the following does not respond to basic hydrolysis?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which of the following gives positive carbylamine test?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

p-chloro aniline and anilinium hydrochoride can be distinguished by

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which of the following is correct order of basisity of amines in gas phase?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which of the following is most basic

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Nitro benzene can be prepared from benzene by using a mixture of Conc $H_2SO_4$ and CONC $HNO_3$.In te mixture Nitric acid acts as

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Predict the product in the following sequence

asked Mar 26, 2014 by thanvigandhi_1

1 answer

The reaction of $CHCl_3$ and alcoholic $KOH$ with para toluidine gives

asked Mar 26, 2014 by thanvigandhi_1

1 answer

The correct order of increasing basic nature of following bases is

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Toluene is nitrated and the resulting product is reduced with tin and $ HCl$. The product so obtained is diazotized and then treated with cuprous bromide. The reaction mixture so formed contains

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which will not undergo diazotization?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which of the following on reduction with $LiAlH_4$ Yields a secondary amine?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

In the elimination reaction given below the alkene formed is

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which of the following chemicals are used to prepare MIC which caused Bhopal gas tragedy?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

The product of the following reaction is

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Identify the product $D$ in the following reaction

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which one of the following methods is neither meant for the synthesis nor for the separation of amines?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Which amine is most basic in aqueous medium?

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Amongst the following the most basic compound is

asked Mar 26, 2014 by thanvigandhi_1

1 answer

Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound X, if water during the reaction is continuously removed. The compound formed is generally known as

asked Mar 25, 2014 by thanvigandhi_1

1 answer

In the above sequence of reactions, A and B are

asked Mar 25, 2014 by thanvigandhi_1

1 answer

Ethyl isocyanide on acidic hydrolysis generates

asked Mar 25, 2014 by thanvigandhi_1

1 answer

When a carbon atom is linked to four different groups it is said to be chiral carbon atom. when alpha hydrogen atom of an alkane is replaced by a functional group we get corresponding compound. Lowest molecular mass optically active ketone contians ____ carbon atoms?

asked Mar 25, 2014 by balaji.thirumalai

1 answer

The reaction of chloroform with alcoholic $KOH$ and p-toluidine gives

asked Mar 22, 2014 by thanvigandhi_1

1 answer

The correct order of increasing basic strength of bases $NH_3, CH_3NH_2\: and\: (CH_3)_2NH$ is

asked Mar 22, 2014 by thanvigandhi_1

1 answer

Reduction of $CH_3-NC$ with Hydrogen in the presence of $pt$ or $Ni$ as catalyst gives

asked Mar 22, 2014 by thanvigandhi_1

1 answer

Unpleasant smell of carbylamines is obtained when chloroform and alcoholic $KOH$ are treated with

asked Mar 22, 2014 by thanvigandhi_1

1 answer

An organic compound (A) on reduction gives compound (B).(B) On treatement with $CHCl_3$ alcoholic potash gives (C) (C) on catalytic reduction gives N-methyl aniline.The compound A is

asked Mar 22, 2014 by thanvigandhi_1

1 answer

Among the following the strongest base is

asked Mar 22, 2014 by thanvigandhi_1

1 answer

The number of isomeric forms that are represented by the aromatic compound $C_7H_9N$ is

asked Mar 22, 2014 by thanvigandhi_1

1 answer

Identify the product $C$ in the sequence

asked Mar 21, 2014 by thanvigandhi_1

1 answer

In this sequence Z is

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Which of the following is least alkaline?

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Which of the following cannot couple with benzene diazonium chloride?

asked Mar 21, 2014 by thanvigandhi_1

1 answer

The reagent used in Hoffmann’s mustard oil reaction is

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Which of the following will not give primary amine?

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Aniline was diazotized and was subsequetly reduced with tin (11)chloride and Hcl.the product formed is

asked Mar 21, 2014 by thanvigandhi_1

1 answer

The reaction of Aniline with benzoyl chloride gives

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Which of the following pairs of species will yield carbylamine?

asked Mar 21, 2014 by thanvigandhi_1

1 answer

Which of the following when heated with a mixture of ethanamine and alcoholic potash gives ethyl isocynide?

asked Mar 21, 2014 by thanvigandhi_1

1 answer

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