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Set 9 of 14 · Questions 241-270 of 396

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NEET Chemistry · Alcohols, Phenols & Ethers · Set 9 (Q241-270)

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  1. 241.
    Compound I is heated with Cone. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 242.
    The major product (P) of the given reaction is(where, Me is -)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 243.
    The major products and in the following reactions are
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  4. 244.
    The major product of the following reaction sequence is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 245.
    Acetic acid is treated with and the product so obtained is subjected to dry distillation. The final product is
    1. (1)propanal
    2. (2)ethanol
    3. (3)ethanal
    4. (4)propanone.
  6. 246.
    Identify the major products and respectively in the following set of reactions.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 247.
    Major product formed in the following reaction is a mixture of:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 248.
    and are in the given reaction?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  9. 249.
    On heating glycerol with conc. a compound is obtained which has bad odour. The compound is
    1. (1)acrolein
    2. (2)formic acid
    3. (3)allyl alcohol
    4. (4)glycerol sulphate.
  10. 250.
    Compounds and in the following reaction are :

    1. (1)position isomers
    2. (2)functional isomers
    3. (3)metamers
    4. (4)identical.
  11. 251.
    What is the major product "P" of the following reaction ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  12. 252.
    Math the following acids with their values:

    A B C D
    1. (1)iii iv ii
    2. (2)ii iii iv
    3. (3)iii iv ii
    4. (4)iv ii iii i
  13. 253.
    Phenol in presence of sodium hydroxide reacts with chloroform to form salicylaldehyde. The reaction is known as
    1. (1)Kolbe's reaction
    2. (2)Reimer-Tiemann reaction
    3. (3)Stephen reaction
    4. (4)Etard reaction.
  14. 254.
    Which alkene on ozonolysis gives CH3CH2CHO and ?
    1. (1)
    2. (2)CH2CH2CH == CHCH2CH3
    3. (3)CH3CH2CH == CHCH3
    4. (4)
  15. 255.
    Give correct sequences of reaction for following conversion :
    1. (1)DIBAL –H, NaBH4, /Δ
    2. (2)/Δ, NaBH4, DIBAL–H
    3. (3)NaBH4, DIBAL–H, /Δ
    4. (4)DIBAL–H, /Δ, NaBH4
  16. 256.
    In the given conversion the compound A is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 257.
    Identify A and B in the chemical reaction?
    A (Major) B (Major)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  18. 258.
    The major product formed in the following reaction sequence is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  19. 259.
    The organic compound that gives following qualitative analysis is:
    Test Inference
    (1)Dil. HCl Insoluble
    (2)NaOH Solution soluble
    (3)Water Decolourization
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  20. 260.
    The major product of following reaction is :
    R–C≡N ?
    1. (1)
    2. (2)
    3. (3)RCHO
    4. (4)RCOOH
  21. 261.
    Which of the following belongs to benzylic alcohol type?
    1. (1)1-Phenyl-2-Propanol
    2. (2)1-Pheny - 1-Propanol
    3. (3)4-Phenyl-but-3-ene-2-ol
    4. (4)2-Methyl- but-3-ene-2-ol
  22. 262.
    An organic compound when treated with conc. undergoes cleavage to yield compounds and . gives yellow precipitate with where as ’ tautomerizes to . gives positive iodoform test. could be
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 263.
    Consider the above reaction, the major product "P" formed is :-
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 264.
    Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields
    1. (1)-butyl alcohol
    2. (2)sec-butyl alcohol
    3. (3)tert-butyl alcohol
    4. (4)iso-butyl alcohol.
  25. 265.
    Considering the above chemical reaction,identify the product :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 266.
    Consider the above reaction and identify the Product P:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 267.
    Which of the following is not the product of dehydration of
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 268.
    What will be the major product when m-cresol is reacted with propargyl bromide in presence of in acetone?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  29. 269.
    The major products A and B in the following set of reactions are :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 270.
    When vapours of a secondary alcohol is passed over heated copper at 573 , the product formed is
    1. (1)a carboxylic acid
    2. (2)an aldehyde
    3. (3)a ketone
    4. (4)an alkene