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Solid State Tes...

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  • Question 1
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    Ionization enthalpy is lowest in

     

  • Question 2
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    The coordination number of AB having rock salt geometry is

     

  • Question 3
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    MgO has the structure of NaCl. The coordination number of the ions in MgO is

     

  • Question 4
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    Type of stoichiometric defect shown by ZnS is

     

  • Question 5
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    A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

     

  • Question 6
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    An element forms a cubic unit cell with edge length 405 pm. Molar mass of this element is 2.7 X 10-2   Kg/mol and its density is given as 2.7 X 103   Kg/m3. How many atoms of this elements are present per unit cell.

     

  • Question 7
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    A group of 14 element is converted into n –type semiconductor by dopping it with

     

  • Question 8
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    Group 14 element is converted to p –type semiconductor by dopping it with

     

  • Question 9
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    Giant ionic structures is also name given to

     

  • Question 10
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    A substance forms face centered cubic crystals. Its density is 1.984  g/cm3 and the length of the edge of the unit cell is 630 pm. Calculate the molar mass in g/mol?

     

  • Question 11
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    The hardest substance among the following is

     

  • Question 12
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    The following diagram shows :

     

  • Question 13
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    In n –type semiconductor current is carried by

     

  • Question 14
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    The following diagram shows

     

  • Question 15
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    Which transition metal oxide has appearance and conductivity like that of copper?

     

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