Hofmann s bromamide reaction is to convert from Chemistry JEE Ye

Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Which complex cannot ionise in solution?

  • [CoCl3(NH3)3]

  • K4[Fe(CN)6]

  • K2[Pt(F6)]

  • [Pt(NH3)6]Cl4


52.

The amino acid which is not optically active is

  • lactic acid

  • serine

  • alanine

  • glycine


53.

Denatured alcohol is

  • ethanol + methanol

  • rectified spirit + methanol + naphtha

  • undistilled ethanol

  • rectified spirit


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54.

Hofmann's bromamide reaction is to convert

  • acid to alcohol

  • alcohol to acid

  • amide to amine

  • amine to amide


C.

amide to amine

Hofmann's bromamide reaction is used to convert amide to amine.

RCONH2Amide + Br2 + 4KOH  RNH2Amine + K2CO3 + 2KBr + 2H2O


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55.

Paracetamol is a/an

  • antipyretic

  • analgesic

  • both (a) and (b)

  • antimalarial


56.

An alkyl halide reacts with alcoholic ammonia in a sealed tube, the product formed will be

  • a primary amine

  • a secondary amine

  • a tertiary amine

  • a mixture of all the three


57.

The reagent used in Clemmensen's reduction is

  • conc. H2SO4

  • Zn-Hg conc. HCl

  • aq. KOH

  • alc. KOH


58.

A metal present in vitamin B12 is

  • aluminium

  • zinc

  • iron 

  • cobalt


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59.

Decomposition of benzene diazonium chloride by using Cu2Cl2/ HCl to form chlorobenzene is

  • Raschig's reaction

  • Sandmeyer's reaction

  • Kolbe's reaction

  • Cannizaro's reaction


60.

The product formed when hydroxylamine condenses with a carbonyl compound is called

  • hydrazide

  • oxime

  • hydrazine

  • hydrazone


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