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MCQs

Total Questions : 115 | Page 7 of 12 pages
Question 61. The carbonate minerals have high hardness.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 62. What is the colour and diaphaneity of a calcite mineral respectively?
  1.    Yellow and opaque
  2.    Blue and transparent
  3.    White and transparent
  4.    Grey and translucent
 Discuss Question
Answer: Option C. -> White and transparent
Answer: (c).White and transparent
Question 63. What is the streak given by calcite minerals?
  1.    Colourless
  2.    White
  3.    Black
  4.    Yellow
 Discuss Question
Answer: Option B. -> White
Answer: (b).White
Question 64. Dolomite is formed by the action of magnesian rich sea water on which deposit?
  1.    Limestone
  2.    Sandstone
  3.    Granite
  4.    Basalt
 Discuss Question
Answer: Option A. -> Limestone
Answer: (a).Limestone
Question 65. Which carbonate mineral has this chemical composition CaCO₃Mg(CO₃)₂?
  1.    Magnesite
  2.    Calcite
  3.    Dolomite
  4.    Jasper
 Discuss Question
Answer: Option C. -> Dolomite
Answer: (c).Dolomite
Question 66. Which lustre cannot occur to the calcite?
  1.    Adamantine
  2.    Waxy
  3.    Vitreous
  4.    Silky
 Discuss Question
Answer: Option A. -> Adamantine
Answer: (a).Adamantine
Question 67. How many sets of cleavage is shown by calcite minerals usually?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
Answer: (c).3
Question 68. What is the chemical composition of Baryte?
  1.    BaSO₄
  2.    CaSO₄
  3.    BaCO₃
  4.    CaCO₃
 Discuss Question
Answer: Option A. -> BaSO₄
Answer: (a).BaSO₄
Question 69. Which mineral is used as refractory material?
  1.    Calcite
  2.    Rock crystal
  3.    Talc
  4.    Magnesite
 Discuss Question
Answer: Option D. -> Magnesite
Answer: (d).Magnesite
Question 70. What is the use of corundum?
  1.    Used as an abrasive
  2.    Used as precious gemstones
  3.    Used as Construction materials
  4.    Used as abrasive and precious gemstones
 Discuss Question
Answer: Option D. -> Used as abrasive and precious gemstones
Answer: (d).Used as abrasive and precious gemstones

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