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Aldehydes, Keto...

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  • Question 1
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    Only One Option Correct Type

    Direction (Q, Nos. 1-9) This section contains 9 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

    Q. 

    Which of the following will give a racemic mixture on reduction with NaBH4 followed by acid work-up?

  • Question 2
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    What would be the major product in the following reaction?

  • Question 3
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    Which of the following on reaction with excess of NaHSO3 in aqueous solution will give mixture of salts which can be separated into two fractions by fractional crystallisation?

  • Question 4
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    Which is the most suitable reagent for the following transformation?

  • Question 5
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    Which is the most suitable reagent for the following transformation?

     

  • Question 6
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    The reagent which can best bring about the following transformation is

  • Question 7
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    The most probable product of the following reaction is

  • Question 8
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    Consider the following reaction,

    Q. 

    The most likely organic product X is

  • Question 9
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    Consider the following reaction,

    Q. 

    The most likely organic product X is

  • Question 10
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    Functional group in saturated carboxylic acid is:

     

  • Question 11
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    Methyl cyanide on hydrolysis gives :

     

  • Question 12
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  • Question 13
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    Which of the following is not a monovalent group?

     

  • Question 14
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    Comprehension Type

    Direction (Q. Nos. 14-16) 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 A (C7H16O) shows both enantiomerism and diastereomerism. Treatment of a pure enantiomer of A with Na2CrO4 /Dil. H2SO4 gives B (C7H14O) - Also A on dehydration with concentrated H2SO4 gives a single alkene C (C7H14). Ozonolysis of C followed by work-up with Zn-H2O gives D (C5H10O) as one of the product which gives racemic mixture on reduction with NaBH4.

    Q. 

    The structure of A satisfying the above criteria is

  • Question 15
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    An organic compound A (C7H16O) shows both enantiomerism and diastereomerism. Treatment of a pure enantiomer of A with Na2CrO4 /Dil. H2SO4 gives B (C7H14O) - Also A on dehydration with concentrated H2SO4 gives a single alkene C (C7H14). Ozonolysis of C followed by work-up with Zn-H2O gives D (C5H10O) as one of the product which gives racemic mixture on reduction with NaBH4.

    Q. 

    If B is reduced with LiAIH4 followed by acid hydrolysis will give

  • Question 16
    4 / -1

    An organic compound A (C7H16O) shows both enantiomerism and diastereomerism. Treatment of a pure enantiomer of A with Na2CrO4 /Dil. H2SO4 gives B (C7H14O) - Also A on dehydration with concentrated H2SO4 gives a single alkene C (C7H14). Ozonolysis of C followed by work-up with Zn-H2O gives D (C5H10O) as one of the product which gives racemic mixture on reduction with NaBH4.

    Q. 

    The correct statement regarding the compound D is

  • Question 17
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    Isobutyraldehyde on oxidation gives:

     

  • Question 18
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    An aldehyde on oxidation gives

     

  • Question 19
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    Which of the following compounds does not have a carboxyl group?

  • Question 20
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    When acetonitrile is hydrolysed the product formed is ________.

     

  • Question 21
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    The functional group present in carboxylic acids is ?

     

  • Question 22
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    What is the common name of propanone?

  • Question 23
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    Matching List Type

    Direction (Q. Nos. 23 and 24) Choices for the correct combination o f elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

    Q.

    Match the reactants from Column I with the reagents and expected outcomes from Column II. Mark the correct option form the codes given below.

  • Question 24
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    Match the reactions from Column I with the properties of products from Column II. Mark the correct option form the codes given below.

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