Quiz 4 for Class 12 Chemistry Chapter 1 Solid State

Quiz 4 for Class 12 Chemistry Chapter 1 Solid State

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Quiz 4 : Solid State - Class 12 Chemistry

Negative Marking :- No

Weightage per Question :- 1 Mark

Number of Questions :- 15

Duration of Quiz :- 15 min

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1) Iodine molecules are held in the crystal lattice by ________

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2) The metal has a FCC lattice, The edge length of the unit cell is 404 pm. The density of the metal is 2.72 gm/cm3. The molar mass of the metal is:

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3) Iodine molecules are held in the crystals lattice by ............

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4) Why do metallic solids conducts electricity ?

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5) Schottky defect in crystal is observed when:

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6) Aluminum has FCC structure. The length of the unit cell is 404 pm. If the density of the metal is 2.7 g/ml, the molar mass of Al atom is

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7) The metal crystallises with a FCC lattice. The edge length of unit cell is 408 pm. The diameter of the metal atom is:

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8) The appearance of colour in solid alkali metal halides is generally due to

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9) A crystal system with axis a=b=c and angles α=β=γ≠90˚ corresponds to:

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10) In a FCC unit cell

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11) Which one of the following is used as photovoltaic material?

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12) The number of tetrahedral and octahedral voids in a CCP array of 100 atoms are respectively:

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13) Which of the following statement is not true about the hexagonal close packing ?

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14) Total number of vacant tetrahedral and octahedral sites in a unit cell of ZnS is :

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15) How many unit cells are present in 23 grams of sodium if it has a BCC lattice ?

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