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Solid State Tes...

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  • Question 1
    4 / -1

    The unit cell with dimensions α = β = γ = 90o, a = b ≠ c is

  • Question 2
    4 / -1

    Barium titanate has the perovskite structure, i.e. a cubic lattice with Ba2+ ions at the corners of the unit cell, oxide ions at the face centres and titanium ions at the body centre. The molecular formula of barium titanate is

  • Question 3
    4 / -1

    The packing efficiency of the two dimensional square unit cell shown below is

  • Question 4
    4 / -1

    Percentage of free space in cubic close packed structure and in body centred packed structure are respectively

  • Question 5
    4 / -1

    In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

  • Question 6
    4 / -1

    The lattice points of a crystal of hydrogen iodide are occupied by

  • Question 7
    4 / -1

    In NaCl crystal each Cl- ion is surrounded by

  • Question 8
    4 / -1

    In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be

  • Question 9
    4 / -1

    In which of the following crystals alternate tetrahedral voids are occupied?

  • Question 10
    4 / -1

    In an antifluorite structure, cations occupy

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