Back to Alcohols, Phenols & Ethers

Set 2 of 14 · Questions 31-60 of 406

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 · Alcohols, Phenols & Ethers · Set 2 (Q31-60)

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. 31.
    The distinguishing test between methanoic acid and ethanoic acid is
    1. (1)Tollens' test
    2. (2)sodium bicarbonate test
    3. (3)litmus test
    4. (4)esterification test.
  2. 32.
    The reaction, is known as
    1. (1)Kolbe's synthesis
    2. (2)Wurtz's synthesis
    3. (3)Williamson's synthesis
    4. (4)Grignard's synthesis.
  3. 33.
    The reagent which can do the conversion, is
    1. (1) /ether
    2. (2)
    3. (3)
    4. (4) and
  4. 34.
    Which of the following compounds has lowest boiling point?
    1. (1)n-butyl alcohol
    2. (2)isobutyl alcohol
    3. (3)tert-butyl alcohol
    4. (4)sec-butyl alcohol
  5. 35.
    A mixed ether , when heated with excess of hot concentrated hydrogen iodide produces two different alkyl iodides which when treated with aq. NaOH give compounds and . Both and give yellow precipitate with NaOI. Identify the mixed ether :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 36.
    Ethyl chloride is converted into diethyl ether by
    1. (1)Perkins reaction
    2. (2)Grignard reaction
    3. (3)Wurtz synthesis
    4. (4)Williamson’s synthesis.
  7. 37.
    Propanoic acid undergoes reaction to give chloropropanoic acid. The product obtained is
    1. (1)stronger acid than propanoic acid
    2. (2)as stronger as propanoic acid
    3. (3)weaker acid than propanoic acid
    4. (4)stronger than dichloropropanoic acid.
  8. 38.
    Which of the following reagents can be used to distinguish a phenol and an alcohol?
    1. (1)Ammoniacal
    2. (2)Ammoniacal
    3. (3)
    4. (4)
  9. 39.
    Which of the following on heating gives an ether as major product?
    P:
    Q:
    R:
    S:
    1. (1)Both and
    2. (2)Both and
    3. (3)Both and
    4. (4)Both and
  10. 40.
    The compound that is most difficult to protonate is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 41.
    Which of the following compound would not evolve when treated with solution?
    1. (1)Salicylic acid
    2. (2)Phenol
    3. (3)Benzoic acid
    4. (4)4-nitrobenzoic acid.
  12. 42.
    Which of the following is strongly acidic?
    1. (1)Phenol
    2. (2)o-Cresol
    3. (3)p-Nitrophenol
    4. (4)-Cresol
  13. 43.
    Which among the following phenolic compounds is most acidic in nature?
    1. (1)-aminophenol
    2. (2)phenol
    3. (3)-nitrophenol
    4. (4)p-nitrophenol
  14. 44.
    (+)-2-Methylbutan-1-ol and (-)-2-methylbutan-1-ol have different values for which property?
    1. (1)Boiling point
    2. (2)Relative density
    3. (3)Refractive index
    4. (4)Specific rotation
  15. 45.
    Incorrect method of preparation for alcohols from the following is:
    1. (1)Reaction of Ketone with RMgBr followed by hydrolysis.
    2. (2)Reaction of alkyl halide with aqueous NaOH.
    3. (3)Hydroboration-oxidation of alkene.
    4. (4)Ozonolysis of alkene
  16. 46.
    The compound that is most difficult to protonate is [NEET 2019]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 47.
    Select the ether among following that yields methanol as one of the products on reaction with cold hydroiodic acid.
    1. (1)1-Methoxybutane
    2. (2)1-Methoxy-2-methylpropane
    3. (3)2-Methoxy-2-methylpropane
    4. (4)Methoxybenzene
  18. 48.
    Assertion : Tertiary alcohols produce turbidity immediately with Lucas reagent.Reason (R) : Lucas reagent is a mixture of conc. and anhydrous .The correct option among the following is
    1. (1)(A) is true, (R) is true and (R) is the correct explanation for (A)
    2. (2)(A) is true, (R) is true but (R) is not the correct explanation for
    3. (3) is true but (R) is false
    4. (4) is false but (R) is true
  19. 49.
    Iodoform can be prepared from all, except
    1. (1)butan-2-one
    2. (2)acetophenone
    3. (3)propan-2-ol
    4. (4)propan-1-ol.
  20. 50.
    Which of the following can be used to test the acidic nature of ethanol?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 51.
    Benzaldehyde and acetone can be best distinguished using
    1. (1)Fehling's solution
    2. (2)sodium hydroxide solution
    3. (3)2,4-DNP
    4. (4)Tollens' reagent
  22. 52.
    The reagent used in Clemmensen reduction is
    1. (1)conc.
    2. (2) conc.
    3. (3)aq.
    4. (4)alc. ,
  23. 53.
    Which of the following reaction(s) can be used for the preparation of alkyl halides?
    (I)
    (II)
    (III)
    (IV)
    1. (1)I, III and IV
    2. (2)I and II
    3. (3)Only IV
    4. (4)III and IV
  24. 54.
    Which one of the following compounds will be most readily attacked by an electrophile?.
    1. (1)Chlorobenzene
    2. (2)Benzene
    3. (3)Phenol
    4. (4)Toluene
  25. 55.
    Which of the following compounds is most acidic?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 56.
    Among the following four compounds(i) Phenol(ii) Methyl phenol(iii) Meta‐nitrophenol(iv) Para‐nitrophenol. The acidity order is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 57.
    The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with
    1. (1)
    2. (2) in presence of pyridine
    3. (3)Dry in the presence of anhydrous
    4. (4)
  28. 58.
    The compound is also called as
    1. (1)ethylene glycol
    2. (2)crotonyl alcohol
    3. (3)propylene glycol
    4. (4)benzenol
  29. 59.
    Given below are two statements:
    Statement I: Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.
    Statement II: Sodium metal can be used to dry diethyl ether and not ethyl alcohol.
    In the light of given statements. choose the correct answer from the options given below
    1. (1)Statement I is false but Statement II are true
    2. (2)Statement I is true but Statement II is false
    3. (3)Both Statement I and Statement II are true
    4. (4)Both Statement I and Statement II are False
  30. 60.
    Number of compounds from the following which will not produce orange red
    precipitate with Benedict solution is........ Glucose, maltose, sucrose, ribose,2
    deoxyribose, amylose, lactose