Indicate which nitrogen compound amongst thefollowing would undergo Hofmann reaction (i.e..,reaction with Br2 and strong KOH) to furnish theprimary amine (R – NH2) [1989]
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For carbylamine reaction, we need hot alcoholic KOH and [1992]
What is the decreasing order of basicity of primary, secondary and tertiary ethylamines and NH3 ? [1994]
Acetamide and ethylamine can be distinguishedby reacting with [1994]
Which is formed, when acetonitrile is hydrolysedpartially with cold concentrated HCl? [1995]
When aniline reacts with oil of bitter almonds(C6H5CHO) condensation takes place andbenzal derivative is formed. This is known as [1995]
Consider the following sequence of reactions :
The compound [A] is [1996]
Aniline is an activated system for electrophilic substitution. The compound formed on heating aniline with acetic anhydride is [1996]
The compound obtained by heating a mixture ofa primary amine and chloroform with ethanolicpotassium hydroxide (KOH) is [1997]
Aniline is reacted with bromine water and theresulting product is treated with an aqueoussolution of sodium nitrite in presence of dilutehydrochloric acid. The compound so formed isconverted into a tetrafluoroborate which issubsequently heated dry. The final product is [1998]
Which of the following reagents will convert pmethylbenzenediazoniumchloride into p-cresol? [1999]
The consituent of the powerful explosive RDX is formed during the nitration of [2000]
Which of the following is most basic in nature? [2000]
Intermediates formed during reaction of with Br2 and KOH are [2001]
Product 'P' in the above reaction is [2002]
The final product C, obtained in this reaction
would be
Aniline when diazotized in cold and when treated with dimethyl aniline gives a coloured product. Its structure would be [2004]
Aniline in a set of reactions yielded a product D.
The structure of the product D would be: [2005]
The major organic product formed from the following reaction :
Electrolytic reduction of nitrobenzene in weaklyacidic medium gives [2005]
Which of the following is more basic thananiline? [2006]
Which one of the following on reduction withlithium aluminium hydride yields a secondaryamine? [2007]
In a reaction of aniline a coloured product C was obtained. [2008]
The structure of C would be :
Nitrobenzene can be prepared from benzene byusing a mixture of conc. HNO3 and conc. H2SO4 in the mixture, nitric acid acts as a/an: [2009]
Aniline in a set of the following reactions yielded a coloured product ‘Y’ [2010]
The structure of ‘Y’ would be ;
Acetamide is treated with the following reagentsseparately. Which one of these would yieldmethylamine? [2010]
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