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11th Standard English Medium Chemistry Subject Basic Concept of Organic Reactions Book Back 1 Mark Questions with Solution Part - I Question Bank Software Jun-07 , 2021

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

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

11th Standard

    Reg.No. :
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Chemistry

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

    Part I

    5 x 1 = 5

  1. Which of the group has highest +I effect ?

    (a)

    CH3-

    (b)

    CH3 - CH2 -

    (c)

    (CH3)2 - CH-

    (d)

    (CH3)3 - C-

  2. -I effect is shown by ____________.

    (a)

    -Cl

    (b)

    -Br

    (c)

    both (a) and (b)

    (d)

    -CH3

  3. Assertion : Tertiary Carbocations are generally formed more easily than primary Carbocations ions.
    Reason : Hyper conjugation, as well as inductive effect due to additional alkyl group, stabilize tertiary carbonium ions.
    (a) both assertion and reason are true and reason is the correct explanation of assertion.
    (b) both assertion and reason are true but reason is not the correct explanation of assertion.
    (c) Assertion is true but reason is false
    (d) Both assertion and reason are false

    (a)

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

    (b)

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

    (c)

    Assertion is true but reason is false

    (d)

    Both assertion and reason are false

  4. Which of the following represent a set of nuclephiles ?

    (a)

    BF3, H2O, NH2-

    (b)

    AlCl3, BF3, NH3

    (c)

    CN-, RCH2-, ROH

    (d)

    H+, RNH3+, :CCl2

  5. The geometrical shape of carbocation is ______________.

    (a)

    Linear

    (b)

    tetrahedral

    (c)

    Planar

    (d)

    Pyramidal

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