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MCQs

Total Questions : 115 | Page 4 of 12 pages
Question 31. In the atomic structure, each oxygen atom is shared by how many tetrahedra?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 32. What is the chemical composition of Orthoclase?
  1.    KAlO₈
  2.    CaAlSi₃O₈
  3.    KAlSi₃O₈
  4.    CaAlO₈
 Discuss Question
Answer: Option C. -> KAlSi₃O₈
Answer: (c).KAlSi₃O₈
Question 33. How many groups are the felspar minerals classified into, on the basis of chemical composition?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 34. The crystallographic system shown by felspar group is __________
  1.    Monoclinic
  2.    Triclinic
  3.    Rhomboclinic
  4.    Monoclinic and triclinic
 Discuss Question
Answer: Option D. -> Monoclinic and triclinic
Answer: (d).Monoclinic and triclinic
Question 35. The felspar minerals are free from __________
  1.    Iron
  2.    Iron and manganese
  3.    Magnesium
  4.    Iron and magnesium
 Discuss Question
Answer: Option D. -> Iron and magnesium
Answer: (d).Iron and magnesium
Question 36. What is the distinguishing characteristic of microcline and orthoclase?
  1.    Colour
  2.    Streak
  3.    Chemical composition
  4.    Hardness
 Discuss Question
Answer: Option B. -> Streak
Answer: (b).Streak
Question 37. The mica group minerals show which structure in the microscopic level?
  1.    Box structure
  2.    Sheet structure
  3.    Hexagonal structure
  4.    Columnar structure
 Discuss Question
Answer: Option B. -> Sheet structure
Answer: (b).Sheet structure
Question 38. Which of the following is not true about plagioclase?
  1.    It is composed of K mainly
  2.    It is composed of either Na, Ca, or Al
  3.    It is of massive or crystalline structure
  4.    It gives 2 sets of cleavages
 Discuss Question
Answer: Option A. -> It is composed of K mainly
Answer: (a).It is composed of K mainly
Question 39. There is the presence of eminent cleavage in micas.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 40. Microcline can be easily distinguished from orthoclase.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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