WBUT 2013 ENGINEERING CHEMISTRY Question Paper Code [CS/B.Tech/OLD/SEM-2/CH-201/2013]

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CS/B.Tech/OLD/SEM-2/CH-201/2013

2013

ENGINEERING CHEMISTRY

Time Allotted : 3 Hours                                           Full Marks : 70

The figures in the margin indicate full marks.

Candidates are required to give their answers in their own words

as far as practicable.

GROUP – A

( Multiple Choice Type Questions )

1. Choose the correct alternatives for any ten of the following :

10x1 = 10

i) For an ideal gas, the change in internal energy ( U ) in

   a reversible isothermal process is

             a) Positive         b) Zero

            c) Negative         d) None of these.

ii) A Px orbital can accommodate

        a) 2 electrons with parallel spin

        b) 6 electrons

       c) 2 electrons with opposite spin

       d) 4 electrons.

iii) Schottky defect arises due to

        a) missing of anion from the crystal lattice

        b) missing of cation from the crystal lattice

        c) missing of cation and anion both from the crystal

             lattice

        d) none of these.

iv) The minimum energy necessary to permit a reaction is

        a) Internal energy            b) Free energy

        c) Threshold energy        d) Activation energy.

v) Which of the following is a bidentate ligand ?

          a) Ammonia

          b) Ethylene diamine

          c) Triethylene tetramine

          d) none of these.

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