Statement Type Solid State Questions for NEET
In each of the following questions, a statement I is given followed by corresponding statement II just below
it. Mark the correct answer from the following statements.
1. If both statement I and statement II are correct and statement II is the correct explanation of statement I
2. If both statement I and statement II are correct but the statement II is not the correct explanation of statement I
3. If statement I is correct but statement II is false
4. It statement I is false but statement II is correct
1. Statement I: NaCl forms ionic crystal
Statement II: In NaCl atoms have electrostatic attractive forces
2. Statement I: In close packing of spheres, a tetrahe- dral void is surrounded by four spheres whereas an octahedral hole is surrounded by six spheres
Statement II: A tetrahedral void has tetrahedral shape whereas an octahedral void has octahedral shape
3. Statement I: Due to Frenkel defect, there is no effect on the density of the crystalline solid
Statement II: In Frenkel defect, no cation of anion leaves the crystal
4. Statement I: Frenkel defects are found in silver halides
Statement II: Frenkel defects are commonly found in ionic solids
5. Statement I: Solid NaCl does not conduct electricity at all
Statement II: There are no defects/holes present in NaCl crystal.
6. Statement I: Conductivity of silicon increases by doping it with group – 15 elements
Statement II: Doping means introduction of small amount of impurities like P, As or Bi into the pure crystal
7. Statement I: on heating ferromagnetic or ferrimagnetic substances, they become paramagnetic
Statement II: The electrons changes their spin on heating
8. Statement I: Antiferromagnetic substances possess zero magnetic moment
Statement II: MnO is an antiferromagnetic substance
9. Statement I: Diamond and graphite are polymeric forms
Statement II: Carbon adopts different structural arrangements under different conditions to give these two forms
10. Statement I: Glass is an amorphous solid
Statement II: Glass has an irregular, random arrangement of atoms
11. Statement I: The presence of large number of Schottky defects in NaCl lowers its density
Statement II: In NaCl there are approximately 10 Schottky pairs per Cm3 at room temperature
12. Statement I: No compound has both Schottky and Frenkel defects
Statement II: Both defects changes the density of the solids
13. Statement I: In any ionic solid with Schottky de- fect the number of positive and negative ions is same
Statement II: Equal number of cation and anion vacancies is present
14. Statement I: Metals are good conductors.
Statement II: The solids with very low conductivities ranging between 10−10−10−20 (52)−1 are known as electrical insulators.
15. Statement I: Electrical conductivity of semiconductors increases with increasing temperature
Statement II: With increase in temperature, large number of electrons from the valence band can jump to the conduction band.
16. Statement I: In close packing of spheres, a tetrahedral void is surrounded by four spheres whereas an octahedral void is surrounded by six spheres
Statement II: A tetrahedral void has a tetrahedral shape whereas an octahedral void has an octahedral shape
17. Statement I: 8:8 coordination of CsCl at low temperature changes to 6:6 coordination at high temperature
Statement II: Temperature influences the structure of solids
18. Statement I: Solids having more F-centres possess intense colours
Statement II: ZnO exist yellow colour in high temperature due to metal deficiency defect
Answer
Class-11
Class-12
1. If both statement I and statement II are correct and statement II is the correct explanation of statement I
2. If both statement I and statement II are correct but the statement II is not the correct explanation of statement I
3. If statement I is correct but statement II is false
4. It statement I is false but statement II is correct
1. Statement I: NaCl forms ionic crystal
Statement II: In NaCl atoms have electrostatic attractive forces
2. Statement I: In close packing of spheres, a tetrahe- dral void is surrounded by four spheres whereas an octahedral hole is surrounded by six spheres
Statement II: A tetrahedral void has tetrahedral shape whereas an octahedral void has octahedral shape
3. Statement I: Due to Frenkel defect, there is no effect on the density of the crystalline solid
Statement II: In Frenkel defect, no cation of anion leaves the crystal
4. Statement I: Frenkel defects are found in silver halides
Statement II: Frenkel defects are commonly found in ionic solids
5. Statement I: Solid NaCl does not conduct electricity at all
Statement II: There are no defects/holes present in NaCl crystal.
6. Statement I: Conductivity of silicon increases by doping it with group – 15 elements
Statement II: Doping means introduction of small amount of impurities like P, As or Bi into the pure crystal
7. Statement I: on heating ferromagnetic or ferrimagnetic substances, they become paramagnetic
Statement II: The electrons changes their spin on heating
8. Statement I: Antiferromagnetic substances possess zero magnetic moment
Statement II: MnO is an antiferromagnetic substance
9. Statement I: Diamond and graphite are polymeric forms
Statement II: Carbon adopts different structural arrangements under different conditions to give these two forms
10. Statement I: Glass is an amorphous solid
Statement II: Glass has an irregular, random arrangement of atoms
11. Statement I: The presence of large number of Schottky defects in NaCl lowers its density
Statement II: In NaCl there are approximately 10 Schottky pairs per Cm3 at room temperature
12. Statement I: No compound has both Schottky and Frenkel defects
Statement II: Both defects changes the density of the solids
13. Statement I: In any ionic solid with Schottky de- fect the number of positive and negative ions is same
Statement II: Equal number of cation and anion vacancies is present
14. Statement I: Metals are good conductors.
Statement II: The solids with very low conductivities ranging between 10−10−10−20 (52)−1 are known as electrical insulators.
15. Statement I: Electrical conductivity of semiconductors increases with increasing temperature
Statement II: With increase in temperature, large number of electrons from the valence band can jump to the conduction band.
16. Statement I: In close packing of spheres, a tetrahedral void is surrounded by four spheres whereas an octahedral void is surrounded by six spheres
Statement II: A tetrahedral void has a tetrahedral shape whereas an octahedral void has an octahedral shape
17. Statement I: 8:8 coordination of CsCl at low temperature changes to 6:6 coordination at high temperature
Statement II: Temperature influences the structure of solids
18. Statement I: Solids having more F-centres possess intense colours
Statement II: ZnO exist yellow colour in high temperature due to metal deficiency defect
Answer
| 1 - 3 | 2 -3 | 3 - 1 | 4 - 2 | 5 - 4 | 6 - 2 |
| 7 - 1 | 8 - 2 | 9 - 1 | 10 - 1 | 11 - 2 | 12 - 4 |
| 13 - 1 | 14 - 2 | 15 - 1 | 16 - 3 | 17 - 1 | 18 - 3 |
Class-11
Class-12
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