Quiz 2 for Class 12 Chemistry Chapter 1 Solid State

Quiz 2 for Class 12 Chemistry Chapter 1 Solid State

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Quiz 2 : 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) Which of the following is not true about the ionic solids ?

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2) The radius of Sodium ion and Chloride ion are 95 pm and 181 pm respectively. The edge length of NaCl unit cell is:

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3) Which of the following exists as covalent crystal in the solid state ?

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4) A metal crystallises in a CCP structure. Its metallic radius is 141.5 pm. The number of unit cells in 64 cm3 of metal are

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5) A solid 'AB' has NaCl structure. If the radius of cation A+ is 170 pm. Calculate the maximum possible radius of the anion B-

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

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7) A solid is formed by two elements P and Q. The element Q form cubic close packing and atom of P occupy one third of tetrahedral voids. The formula of the compound is

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8) One unit cell of NaCl contains:

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9) Graphite cannot be classified as ..........

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10) 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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11) Which of the following defects in the crystal lowers its density ?

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12) A solid is formed by two elements P and Q. The element Q forms cubic close packing and atoms of P occupy one third of tetrahedral voids. The formula of the compound is:

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13) For tetrahedral co-ordination, the radius ratio should be:

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14) The unit cell of a binary alloy composed of A and B metals, has a CCP structure with A atoms occupying the corners and B atoms occupying centers of each face of the cube. If during the crystallization of this alloy, in the unit cell two A atoms are missed, the overall composition per unit cell is

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15) Which one of the following forms a molecular solid when in solidified ?

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