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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
what is the commercial use of aminesused as intermediates in the synthesis of medicines and fibres
where do amines occur in naturethey occur among protiens, vitamins, alkaloids and hormones.
what synthetic examples are there of aminespolymers, dyestuffs and drugs
two biologically active compounds of amineadrenaline and ephedrine ( both contain secondary amino group, used to increase blood pressure)
a synthetic amino compound used as anaesthetic in dentistrynovocain
a known antihistaminic drug which contains tertiary amino groupbenadryl
structure of aminesnitrogen orbitals in amines is sp3 hybridised and the geometry is pyramidal. and the angle C-N-E ( H or C) is less than 109.5 degree
angle in case of trimethylamine108 degrees
what are aliphatic aminesan amine in the molecule of which there are no aromatic rings directly on nitrogen atom
how do you give common names for aminesalkylamine but we add di or tri before it when 2 or more groups are same
IUPAC names for aminesalkanamines
how are arylamines named in IUPACwe replace the e of arene by amine
what is the formula for anilineC6H5NH2
how are nitro compounds made into aminesreducing them by passing H2 gas through them in presence of Ni, Pd or Platinum
why is reduction with iron scrap and HCl preferredbecause FeCl2 formed gets hydrolysed to release HCl during the reaction, thus only a small amount of HCl is required to initiate the reaction.
explain ammonolysisthe process of cleavage of the C-X bond by ammonia molecule
how is ammonolysis carried outit is carried out in a sealed tube at 373 K, the primary amine thus obtained behaves as a nucleophile and can further react with alkyl halide to form secondary and tertiary amines and finally quaternary ammonium salt.
how is the free amine obtained from ammonium saltby treatment with a strong base
what is the disadvantage of ammonolysisthe yeild is a mixture of primary, secondary and tertiary amines and also a quaternary ammonium salt.
order of reactivity of halides with aminesRI>RBr>RCl