Back to Aldehydes & Ketones

Set 10 of 10 · Questions 271-285 of 285

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher

Mere Teacher · Previous Year Questions

JEE Main Chemistry · Aldehydes & Ketones · Set 10 (Q271-285)

QR code to mereteacher.com

Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.

  1. 271.
    The major product of the following reactions
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 272.
    The major product formed in following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 273.
    Identify the major product in the given reaction.

    In the above reaction is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  4. 274.
    Complete the following reaction.
    [C] is…. . [NEET 2023]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 275.
    The major product of the following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 276.
    Tischenko reaction is a modification of
    1. (1)Aldol condensation
    2. (2)Claisen condensation
    3. (3)Cannizzaro reaction
    4. (4)Pinacol-pinacolone reaction
  7. 277.
    Formalin is an aqueous solution of
    1. (1)fluorescein
    2. (2)formic acid
    3. (3)formaldehyde
    4. (4)furfuraldehyde
  8. 278.
    The number of the correct reaction(s) among the following is______
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  9. 279.
    Identify and .

    X Y Z
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  10. 280.
    Sodium formate on heating yields
    1. (1)oxalic acid and
    2. (2)sodium oxalate and
    3. (3) and
    4. (4)sodium oxalate.
  11. 281.
    Identify the name reaction.
    1. (1)Stephen reaction
    2. (2)Etard reaction
    3. (3)Gatterman-koch reaction
    4. (4)Rosenmund reduction
  12. 282.
    In the reaction, ; the term is
    1. (1)acetaldehyde
    2. (2)ethanamine
    3. (3)acetone
    4. (4)dimethylamine.
  13. 283.
    An organic compound with molecular formula is not readily oxidised. On reduction it gives which reacts with HBr to give a bromide which is converted to Grignard reagent. This Grignard reagent on reaction with followed by hydrolysis give 2,3-dimethylbutan-2-ol. Compounds and respectively are:
    1. (1)
    2. (2)H
    3. (3)
    4. (4)
  14. 284.
    2,4 -DNP test can be used to identify:
    1. (1)aldehyde
    2. (2)halogens
    3. (3)ether
    4. (4)amine
  15. 285.
    In the scheme given below, the total number of intramolecular aldol condensation products formed from 'Y' is: