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SOLID STATE MCQs

Total Questions : 22 | Page 1 of 3 pages
Question 1. Based on the nature of intermolecular forces, classify the following solids : Silicon carbide
  1.    Ionic solid
  2.    Covalent solid
  3.    Molecular solid
  4.    Metallic solid
 Discuss Question
Answer: Option B. -> Covalent solid
Question 2. Which of the following is an amorphous solid?
  1.    Copper(Cu)
  2.    Quartz glass (SiO2)
  3.    Silicon carbide (SiC)
  4.    Sodium Chloride (NaCl)
 Discuss Question
Answer: Option B. -> Quartz glass (SiO2)
Question 3. On doping Ge metal with a little of In(Indium) we get
  1.    n - type semiconductor
  2.    p-type semiconductor
  3.    insulator
  4.    rectifier
 Discuss Question
Answer: Option B. -> p-type semiconductor
Question 4. Percentage of free space in BCC unit cell is
  1.    34%
  2.    28%
  3.    30%
  4.    32%
 Discuss Question
Answer: Option D. -> 32%
Question 5. A cubic solid is made of two elements P and Q
  1.    PQ
  2.    P2Q
  3.    PQ2
  4.    PQ4
 Discuss Question
Answer: Option A. -> PQ
Question 6. Which of the following is a network solid or covalent crystalline solid?
  1.    Diamond (C)
  2.    H2O (Ice)
  3.    Calcium Fluoride (CaF2)
  4.    Iron Metal (Fe)
 Discuss Question
Answer: Option A. -> Diamond (C)
Question 7. Anionic sites occupied by unpaired electrons are called
  1.    F Centres
  2.    Interstitial Centres
  3.    Cationic Centres
  4.    Anionic Centres
 Discuss Question
Answer: Option A. -> F Centres
Question 8. The type of crystalline solid which is a good conductor in solid as well as molten state?
  1.    Ionic Solid
  2.    Metallic Solid
  3.    Covalent Solid
  4.    Molecular Solid
 Discuss Question
Answer: Option B. -> Metallic Solid
Question 9. Niobium crystallises in body-centred cubic structure
  1.    331 pm
  2.    143 pm
  3.    331 nm
  4.    143 nm
 Discuss Question
Answer: Option B. -> 143 pm
Question 10. Defect shown by ionic crystals with large difference in size
  1.    Schottky Defect
  2.    Impurity Defect
  3.    Frenkel Defect
  4.    Metal Deficiency Defect
 Discuss Question
Answer: Option C. -> Frenkel Defect

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