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NEET UG Aldehydes, Ketones and Carboxylic Acids — practice questions — page 4

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 91–120 of 151.

Match each test to its resultRead the answer and worked solution →Aldehyde or ketone behaviourRead the answer and worked solution →Reduction or oxidationRead the answer and worked solution →Run a Tollens testRead the answer and worked solution →Fill the gaps on carbonyl reactionsRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →**Wolff–Kishner reduction** uses which reagent to convert $>C=O$ to $>CH_2$?Read the answer and worked solution →Match each named reactionRead the answer and worked solution →**Hoffmann ammonolysis** of alkyl halide with excess $NH_3$ in sealed tube primarily givesRead the answer and worked solution →Why does the Finkelstein reaction proceed efficiently in acetone but not in water?Read the answer and worked solution →**Williamson's synthesis** of ethers couples an alkoxide withRead the answer and worked solution →The Lewis-acid catalyst typically used in **Friedel–Crafts alkylation** isRead the answer and worked solution →For a carbonyl compound to undergo **aldol condensation**, it must haveRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →NEET · Chemistry · Aldehyde / Ketone TestsRead the answer and worked solution →Which carboxylic acid has the highest $K_a$ (i.e. is the most acidic)?Read the answer and worked solution →The carbonyl carbon in an aldehyde or ketone isRead the answer and worked solution →The reaction of formaldehyde with concentrated NaOH is calledRead the answer and worked solution →Tollens' reagent gives a silver mirror with: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 →The **Finkelstein reaction** uses which solvent for the conversion $RCl \to RI$?Read the answer and worked solution →$CH_3MgBr$ reacts with $CO_2$ followed by acidic workup. The product isRead the answer and worked solution →Which solvent is essential for preparing a Grignard reagent and why?Read the answer and worked solution →Benzene treated with $CH_3COCl$ and anhydrous $AlCl_3$ givesRead the answer and worked solution →The Wurtz reaction on $CH_3CH_2Br$ with sodium in dry ether gives mainlyRead the answer and worked solution →The **Fittig reaction** couples two molecules ofRead the answer and worked solution →**Kolbe's reaction** treats sodium phenoxide with $CO_2$ under pressure to giveRead the answer and worked solution →**Reimer–Tiemann reaction** of phenol with $CHCl_3$ and aq. $NaOH$, followed by hydrolysis, givesRead the answer and worked solution →The reactive electrophile in the Reimer–Tiemann reaction isRead the answer and worked solution →

Worked practice questions

Match each test to its result

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Matching pairs
  1. Left
    Tollens test
    Right
    A bright silver mirror
  2. Left
    Fehling test
    Right
    A reddish brown solid
  3. Left
    Iodoform test
    Right
    Marks a methyl ketone
Instructions
Tap a test, then tap what it shows.
_Source: syllabus Chemistry Part II, Chapter 12, Aldehydes, Ketones and Carboxylic Acids._

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Aldehyde or ketone behaviour

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Items
  1. Item
    Mild agents work
    Category
    Aldehyde
  2. Item
    Silver mirror
    Category
    Aldehyde
  3. Item
    Reddish brown
    Category
    Aldehyde
  4. Item
    Needs vigour
    Category
    Ketone
  5. Item
    Chain is cut
    Category
    Ketone
Categories
  1. Item
    Aldehyde
  2. Item
    Ketone
Instructions
Tap each behaviour into the family it fits.
_Source: syllabus Chemistry Part II, Chapter 12, Aldehydes, Ketones and Carboxylic Acids._

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Reduction or oxidation

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Left
Reduction
Items
  1. Item
    Rosenmund
    Answer
    Reduction
  2. Item
    Clemmensen
    Answer
    Reduction
  3. Item
    Wolff-Kishner
    Answer
    Reduction
  4. Item
    Tollens test
    Answer
    Oxidation
  5. Item
    Fehling test
    Answer
    Oxidation
  6. Item
    Nitric acid
    Answer
    Oxidation
Right
Oxidation
Instructions
Swipe left for reductions, right for oxidations.
_Source: syllabus Chemistry Part II, Chapter 12, Aldehydes, Ketones and Carboxylic Acids._

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Amines and BiomoleculesChemical KineticsEquilibriumRedox ReactionsHydrocarbonsChemical Bonding and Molecular StructureSolutionsStructure of Atom