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Phenols and Eth...

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  • Question 1
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    In which of the following reaction, the major product is an acyclic ether ?

     

  • Question 2
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     Consider the following reaction,

    The correct statement(s) concerning the above transformation is/are

     

  • Question 3
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    Consider the following reaction,

    The correct statement regarding the above reaction is/are

     

  • Question 4
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    Comprehension Type

    Direction : This section contains a paragraph, describing theory, experiments, data, etc. Three questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

    Passage

    An organic compound X has molecular formula C11 H16 O and it can be resolved into enantiom ers. X does not evolve any gas with Na metal. X when treated with concentrated HBr gives C6 H5 OH and Y(C5 H11 Br). Y is chiral and has the same configuration as that of compound X.

    Q. 

    Which reaction gives X as the major product?

     

  • Question 5
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    An organic compound X has molecular formula C11 H16 O and it can be resolved into enantiom ers. X does not evolve any gas with Na metal. X when treated with concentrated HBr gives C6 H5 OH and Y(C5 H11 Br). Y is chiral and has the same configuration as that of compound X.

    Q. 

    If Y is treated with C2 H5 ONa/C2 H5 OH  then how many different E2 products would be formed?

     

  • Question 6
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    An organic compound X has molecular formula C11 H16 O and it can be resolved into enantiom ers. X does not evolve any gas with Na metal. X when treated with concentrated HBr gives C6 H5 OH and Y(C5 H11 Br). Y is chiral and has the same configuration as that of compound X.

    Q. 

    If X is treated with H2 SO4 it undergoes a rearrangem ent to give Z as the major organic product. What is Z?

     

  • Question 7
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    One Integer Value Correct Type

    Direction : This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

    Q. 

    If a mixture of a 1-propanol and 2-butanol is heated with concentrated H2 SO4 at 140 °C, how many different ethers would be formed?

     

  • Question 8
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    How many lone pairs are present in 12-crown-4?

     

  • Question 9
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    When 2-ethyl-3-methyl-1 -pentene is treated with CH3 OH in H2 SO4 , how many different methoxy ethers would be formed in significant amount?

     

  • Question 10
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    How many of the following reactions give the cyclic ether as the major organic product?




     

  • Question 11
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    How many ether isomers exist for C5 H12 O?

     

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