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11th Standard English Medium Chemistry Subject Basic Concept of Organic Reactions Book Back 1 Mark Questions with Solution Part - II

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5

    Part I

    5 x 1 = 5
  1. What is the hybridisation state of benzyl carbonium ion ?

    (a)

    sp2

    (b)

    spd2

    (c)

    sp3

    (d)

    sp2d

  2. Decreasing order of nucleophilicity is ____________.

    (a)

    OH- > NH2- > -OCH3 > RNH2

    (b)

    NH2- > OH- > -OCH3 > RNH2

    (c)

    NH2- > CH3O- > OH- > RNH2

    (d)

    CH3O- > NH2- > OH- > RNH2

  3. Homolytic fission of covalent bond leads to the formation of ___________.

    (a)

    electrophile

    (b)

    nucleophile

    (c)

    Carbo cation

    (d)

    free radical

  4. Hyper Conjugation is also known as ___________.

    (a)

    no bond resonance

    (b)

    Baker - nathan effect

    (c)

    both (a)and (b)

    (d)

    none of these

  5. Which of the following species does not exert a resonance effect ?

    (a)

    C6H5OH

    (b)

    C6H5Cl

    (c)

    C6H5NH2

    (d)

    \({ C }_{ 6 }{ H }_{ 5 }\overset { + }{ N } { H }_{ 3 }\)

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