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NEET UG Aldehydes, Ketones and Carboxylic Acids — practice questions — page 3

Explore 151 free Aldehydes, Ketones and Carboxylic Acids questions in NEET UG Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Aldehydes, Ketones and Carboxylic Acids questions and exercises with answers

Showing questions 61–90 of 151.

NEET · Chemistry · Aldehyde / Ketone TestsRead the answer and worked solution →Match each named reactionRead the answer and worked solution →Which reaction is being described?Read the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →Match each carbonyl testRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →Aldehydes are easily oxidised to give:Read the answer and worked solution →Which of these oxidises an aldehyde readily?Read the answer and worked solution →Ketones need oxidising conditions that are:Read the answer and worked solution →Oxidising a ketone breaks which kind of bond?Read the answer and worked solution →Products from oxidising a ketone have carbon atoms numbering:Read the answer and worked solution →Mild oxidising agents are used to tell aldehydes apart from:Read the answer and worked solution →Tollens' reagent is an ammoniacal solution of silver:Read the answer and worked solution →A positive Tollens' test produces a bright:Read the answer and worked solution →The Tollens' reaction takes place in a medium that is:Read the answer and worked solution →Bernhard Tollens was a Professor of Chemistry at a university in:Read the answer and worked solution →Fehling's reagent is made up of how many solutions?Read the answer and worked solution →Fehling solution A is an aqueous solution of copper:Read the answer and worked solution →Fehling solution B is alkaline sodium potassium:Read the answer and worked solution →A positive Fehling's test gives a precipitate that is:Read the answer and worked solution →Acyl chloride hydrogenated over palladium on barium sulphate gives the:Read the answer and worked solution →Zinc amalgam with concentrated hydrochloric acid gives the reduction of:Read the answer and worked solution →Reduction of a carbonyl group using glycol is named after:Read the answer and worked solution →Adding water to ethyne gives which product?Read the answer and worked solution →Adding water to alkynes other than ethyne gives:Read the answer and worked solution →A positive iodoform test shows the compound is a methyl:Read the answer and worked solution →Aldol condensation needs the molecule to carry at least one:Read the answer and worked solution →Cannizzaro reaction happens with aldehydes that have no:Read the answer and worked solution →True or false on carbonyl reactionsRead the answer and worked solution →Quick picks on carbonyl reactionsRead the answer and worked solution →

Worked practice questions

NEET · Chemistry · Aldehyde / Ketone Tests

Read exercise and reference answers
Matching pairs
  1. Left
    Tollens' test (silver mirror)
    Right
    Detects aldehydes only
  2. Left
    Fehling's solution (red ppt)
    Right
    Detects aliphatic aldehydes
  3. Left
    Benedict's test (red-brown ppt)
    Right
    Detects reducing sugars / aldehyde
Instructions
Match each chemical test to what it detects.

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Match each named reaction

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Matching pairs
  1. Left
    Williamson
    Right
    Makes an ether from an alkoxide
  2. Left
    Kolbe
    Right
    Puts a COOH group onto phenol
  3. Left
    Reimer-Tiemann
    Right
    Puts a CHO group onto phenol
Instructions
Tap a reaction on the left, then tap what it makes or does.
_Source: syllabus Chemistry Alcohols Phenols and Ethers, Alcohols_

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Which reaction is being described?

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Items
  1. Item
    No alpha hydrogen
    Category
    Cannizzaro
  2. Item
    Gives alcohol+acid
    Category
    Cannizzaro
  3. Item
    Has alpha hydrogen
    Category
    Aldol
  4. Item
    Beta hydroxy C=O
    Category
    Aldol
  5. Item
    C=O becomes CH2
    Category
    Wolff-Kishner
  6. Item
    Uses hydrazine
    Category
    Wolff-Kishner
Categories
  1. Item
    Cannizzaro
  2. Item
    Aldol
  3. Item
    Wolff-Kishner
Instructions
Tap a clue, then tap the reaction it points to.
_Source: syllabus Chemistry Aldehydes Ketones Carboxylic Acids, Aldehydes_

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Amines and BiomoleculesChemical KineticsEquilibriumRedox ReactionsHydrocarbonsChemical Bonding and Molecular StructureSolutionsStructure of Atom