IIT-JEE-Chemistry-Paper 2 -2008

Paper II

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1.     The correct stability order for the following species is

(A)    (II) > (IV) > (I) > (III)

(B)    (I) > (II) > (III) > (IV)

(C)    (II) > (I) > (IV) > (III)

(D)    (I) > (III) > (II) > (IV)

2.     Cellulose upon acetylation with excess acetic anhydride/H₂SO₄ (catalytic) gives cellulose triacetate whose structure is

3.     In the following reaction sequence, the correct structures of E, F and G are

4.     Among the following, the coloured compound is

        (A)    CuCI

        (B)    K₃ [Cu(CN)₄]

        (C)    CuF₂

        (D)    [Cu(CH₃CN)₄]BF₄

5.     Both [Ni(CO)₄] and [Ni(CN)₄]^2- are diamagnetic. The hybridization of nickel in these complexes, respectively, are

        (A)    sp³, sp³

        (B)    sp³, dsp²

        (C)    dsp², sp³

        (D)    dsp², dsp³

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