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    CBSE

    Subject

    Chemistry
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    NEET Chemistry : Organic Chemistry – Some Basic Principles and Techniques

    Multiple Choice Questions

    101.

    The major organic product formed in the following reaction.

    Answer
    • 102.

    Lassaigne's test for the detection of nitrogen fails in

    • H2N-CO-NHNH2.HCl

    • NH2-NH2.HCl

    • C6H5-NH-NH2.HCl

    • C6H5CONH2

    Answer
    • 103.

    Methoxy methane and ethanol are :

    • positionl isomers

    • chain isomers

    • functional isomers

    • optical isomers

    Answer
    • 104.

    Assertion : When acetamide reacts with NaOH and Br,, methyl amine is formed.

    Reason : The reaction occurs through intermediate formation of isocyanate.

    • If both assertion and reason are true and reason is the correct explanation of assertion.

    • If both assertion and reason are true but reason is not the correct explanation of assertion.

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
    • 105.

    Assertion : The Dumas method is more applicable to nitrogen containing organic compounds than the Kjeldahl's method.

    Reason: The Kjeldahl's method does not give satisfactory results for compounds in which nitrogen is directly linked to oxygen.

    • If both assertion and reason are true and reason is the correct explanation of assertion

    • If both assertion and reason are true but reason is not the correct explanation of assertion.

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
    • 106.

    Arrange the following compounds in increasing order of rate of reaction towards nucleophilic substitution :

    • I < II < III

    • I < III < II

    • III < II < I

    • II < III < I

    Answer
    • 107.

    Assertion : Chlorobenzene is more reactive than benzene towards the electrophilic substitution reaction.

    Reason : Resonance destabilises the carbocation.

    • If both assertion and reason are true and reason is the correct explanation of assertion.

    • If both assertion and reason are true but reason is not the correct explanation of assertion.

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
    • 108.

    Isopropylbenzene on air oxidation in the presence of dilute acid gives

    • C6H5COOH

    • C6H5COCH3

    • C6H5CHO

    • C6H5OH

    Answer
    • 109.

    Among the following, the achiral amino acid is

    • 2-ethylalanine

    • 2-methylglycine

    • 2-hydroxymethylserine

    • tryptophan

    Answer
    • 110.

    The purity of an organic compound is determined by

    • Chromatography

    • Crystallisation

    • melting or boiling point

    • both( A )and (C)

    Answer
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