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NEET Chemistry · Alcohols, Phenols & Ethers · Set 3 (Q61-90)

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  1. 61.
    The bond angle between and bonds in alcohols is close to
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 62.
    Choose the false statement from following.
    1. (1)Tertiary alcohols readily react with conc. in absence of zinc chloride.
    2. (2)The order of reactivity of alcohols with a given halo acid .
    3. (3)Good yield of alkyl halide may be obtained by heating alcohols with in .
    4. (4)Constant boiling is used for the preparation of alkyl bromides from alcohols.
  3. 63.
    Which of the following statements are correct for phenol?(A) In general, phenol is more acidic than alcohol.(B) Phenol is used in the production of melamine plastic.(C) Phenol gives violet colour with neutral ferric chloride solution.(D) Phenol when heated with acetyl chloride gives phenetole.
    1. (1)C and D
    2. (2)A and D
    3. (3)B and C
    4. (4)A and C
  4. 64.
    Which of the following reaction is feasible?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 65.
    The relative acidic strangths of benzoic acid, -toluic acid and -toluic acid is of the decreasing order :
    1. (1)-toluic acid -toluic acid benzoic acid
    2. (2)-toluic acid -toluic acid benzoic acid
    3. (3)-toluic acid benzoic acid -toluic acid
    4. (4)-toluic acid benzoid acid -toluic acid.
  6. 66.
    Which of the following compounds reacts immediately with Lucas reagent?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 67.
    Which of the following compounds has the most acidic nature?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 68.
    Which of the following will not be soluble in sodium hydrogen carbonate?
    1. (1)2,4,6-trinitrophenol
    2. (2)Benzoic acid
    3. (3)o-nitrophenol
    4. (4)Benzene sulphonic acid
  9. 69.
    How many isomers of will be primary alcohols?
    1. (1)5
    2. (2)
    3. (3)2
    4. (4)3
  10. 70.
    The hydrolysis reaction that takes place at the slowest rate, among the following is [NEET
    2019]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 71.
    In the reaction,the electrophile involved is
    1. (1)dichloromethyl cation
    2. (2)formyl cation
    3. (3)dichloromethyl anion
    4. (4)dichlorocarbene
  12. 72.
    The major products and formed in the following reactions respectively are
    1. (1) and
    2. (2) and
    3. (3) and
    4. (4) and
  13. 73.
    Which of the following reactions takes places when tertiary butanol passed over heated copper at ?
    1. (1)Dehydrogenation reaction
    2. (2)Dehydration reaction
    3. (3)Oxidation reaction
    4. (4)Addition reaction
  14. 74.
    The correct sequence of reagents for the above conversion of X to Y is :
    1. (1)(i) ;(ii) Jones reagent;(iii)
    2. (2)(i) ;(ii) NaOEt ;(iii) Jones reagent
    3. (3)(i) Jones reagent;(ii) NaOEt ;(iii)
    4. (4)(i) NaOEt;(ii) ;(iii) Jones reagent
  15. 75.
    The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits
    1. (1)geometrical isomerism
    2. (2)optical isomerism
    3. (3)neither optical nor geometrical isomerism
    4. (4)both optical and geometrical isomerism.
  16. 76.
    Z What is ? [NEET 2020]
    1. (1)OH
    2. (2)
    3. (3)
    4. (4)
  17. 77.
    Lucas test is used for the determination of
    1. (1)aldehydes
    2. (2)phenols
    3. (3)carboxylic acid
    4. (4)alcohols
  18. 78.
    Anisole on cleavage with HI gives [NEET 2020]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  19. 79.
    The major organic product in the reaction is products
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  20. 80.
    Identify the product formed in the reaction Phenol + conc. product
    1. (1)-Phenol sulphonic acid
    2. (2)-Phenol sulphonic acid
    3. (3)Benzene sulphonic acid
    4. (4)p-Phenol sulphonic acid
  21. 81.
    Which of the following reagents would distinguish cis-cyclopenta-1, 2 -diol from the trans-
    isomer? [NEET 2016]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  22. 82.
    Identify the major product in the given reaction sequence
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 83.
    Isopropyl methyl ether when treated with cold hydrogen iodide gives
    1. (1)isopropyl iodide and methyl iodide
    2. (2)isopropyl alcohol and methyl iodide
    3. (3)isopropyl alcohol and methyl alcohol
    4. (4)isopropyl iodide and methyl alcohol.
  24. 84.
    Among the following, which is least acidic?
    1. (1)-Nitrophenol
    2. (2)p-Chlorophenol
    3. (3)Phenol
    4. (4)-Cresol
  25. 85.
    The structure of intermediate in the following reaction, is [ NEET 2019]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 86.
    What is the increasing order of acidic strength among the following?
    (i) -methoxy phenol
    (ii) -methyl phenol
    (iii) -nitrophenol
    1. (1)ii iii I
    2. (2)iii ii i
    3. (3)i ii iii
    4. (4)i iii ii
  27. 87.
    on heating with periodic acid gives
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 88.
    An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is
    1. (1)an aldehyde
    2. (2)a primary alcohol
    3. (3)a secondary alcohol
    4. (4)a ketone.
  29. 89.
    Phenol is mainly manufactured from a compound by subjecting it to oxidation in air followed by treating with dilute acid. Identify the compound
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 90.
    Which one of the following alcohols reacts instantaneously with Lucas reagent?
    [NEET 2024]
    1. (1)
    2. (2)
    3. (3)
    4. (4)