Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Aldehydes Ketones and Carboxylic Acids question

2012 · Q73
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Chemistry
  4. /Aldehydes Ketones and Carboxylic Acids
  5. /2012 · Q73

Aldehydes Ketones and Carboxylic Acids question

2012 · Q73

NEETChemistryAldehydes Ketones and Carboxylic AcidsMCQ+4 / −1
Consider the reaction :
RCHO + NH2NH2 →\to→ RCH === N −-− NH2

What sort of reaction is it?
  1. A
    Electrophilic addition-elimination reaction
  2. B
    Free radical addition-elimination reaction
  3. C
    Electrophilic substitution-elimination reaction
  4. D
    Nucleophilic addition-elimination reaction
View written solutionFree

Correct answer: D

RCHO + NH2NH2 →\to→ RCH === N −-− NH2

Such reactions take place in slightly acidic medium and involve nucleophilic addition of the ammonia derivative.

PreviousNext

More from Aldehydes Ketones and Carboxylic Acids

  • Predict the products in the given reaction. Includes diagram2012 · MCQ
  • The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is2012 · MCQ
  • CH3CHO and C6H5CH2CHO can be distinguished chemically by2012 · MCQ
  • Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is2012 · MCQ
  • The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds: Includes diagram2011 · MCQ
  • An organic compound A on treatment with NH3 gives B, which on heating gives C. C when treated with Br2 in the presence of KOH produces ethyl amine. Compound A is2011 · MCQ
  • Match the compounds given in List-I with List-II and select the suitable option using the code given below. Includes table2011 · MCQ
  • Which one is a nucleophilic substitution reaction among the following ?2011 · MCQ