Quiz 8 for Class 12 Chemistry Chapter 1 Solid State

Quiz 8 for Class 12 Chemistry Chapter 1 Solid State

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Quiz 8 : 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) The number of tetrahedral and octahedral voids in a CCP array of 100 atoms are respectively:

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

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3) When electrons are trapped into the crystal in anion vacancy, the defect is known as:

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4) The coordination number of metal crystallises in a HCP arrangement is :

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5) A particular solid is very hard and has a high melting point. In solid state, it is a non-conductor and its melt is a conductor of electricity. Classify the solid.

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6) Which of the following statement is incorrect about crystalline solids ?

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7) The number of carbon atoms per unit cell of the diamond unit cell is:

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8) Which of the following compounds show both Frenkel and Schottky defects ?

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9) Aluminium has FCC structure. The length of the unit cell is 404 pm. If the density of the metal is 2.7 g/cc, the molar mass of Al atom is:

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10) An ionic solid, 'AB' crystallises in BCC lattice with edge length equal to 387 pm. The distance between two oppositely charged ions in the lattice is:

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11) CsBr crystallises in a BCC lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 u and that of Br = 80 u. The density of CsBr is:

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12) Which one of the following is a covalent crystal ?

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13) One unit cell of NaCl contains:

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14) Which of the following is not true about the ionic solids ?

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15) A particular solid is very hard and has a high melting point. It may decompose before melting. Classify the solid.

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