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MCQs

Total Questions : 95 | Page 7 of 10 pages
Question 61. What are the number of atoms of chlorine in 250.5 grams of Cl₂O₆?
  1.    1.806 X 10²⁴
  2.    2.408 X 10²³
  3.    9.033 X 10²³
  4.    6.022 X 10²³
 Discuss Question
Answer: Option A. -> 1.806 X 10²⁴
Answer: (a).1.806 X 10²⁴
Question 62. What are the number of moles of hydrogen in NH₄[Cr(SCN)₄(NH₃)₂] if the weight of nitrogen in it is 49 grams?
  1.    3.5
  2.    5
  3.    7
  4.    10
 Discuss Question
Answer: Option B. -> 5
Answer: (b).5
Question 63. What are the number of moles of Hydrogen in 158 grams of Ammonium Bicarbonate?
  1.    5
  2.    10
  3.    15
  4.    20
 Discuss Question
Answer: Option B. -> 10
Answer: (b).10
Question 64. What are the number of moles of nitrogen in 274 grams of (NH₄)₂Ce(NO₃)₆?
  1.    16
  2.    8
  3.    6
  4.    4
 Discuss Question
Answer: Option D. -> 4
Answer: (d).4
Question 65. What are the number of molecules of water in CuSO₄.5H₂O, if the weight of oxygen in it is 36 grams?
  1.    3.25 X 10²³
  2.    5.25 X 10²³
  3.    7.52 X 10²³
  4.    9.52 X 10²³
 Discuss Question
Answer: Option C. -> 7.52 X 10²³
Answer: (c).7.52 X 10²³
Question 66. Which of the following is not a unit of density?
  1.    Kg/m³
  2.    N/m³
  3.    N.s2/m4
  4.    g/cm³
 Discuss Question
Answer: Option B. -> N/m³
Answer: (b).N/m³
Question 67. What is the density of a substance of mass 10 grams and volume 5 liters?
  1.    2 kg/m³
  2.    20 kg/m³
  3.    200 kg/m³
  4.    2000 kg/m³
 Discuss Question
Answer: Option A. -> 2 kg/m³
Answer: (a).2 kg/m³
Question 68. A liquid of mass 10 kg is enclosed in a cylinder of radius 1 m and length 5 m, what is the density of liquid?
  1.    0.54 kg/m³
  2.    0.44 kg/m³
  3.    0.63 kg/m³
  4.    0.83 kg/m³
 Discuss Question
Answer: Option C. -> 0.63 kg/m³
Answer: (c).0.63 kg/m³
Question 69. What is the density of a liquid of mass 20 kg, enclosed in a cuboid of surface areas of three sides as 1 m², 2 m², 5 m², and one of its sides is 2 m?
  1.    1 kg/m³
  2.    2 kg/m³
  3.    3 kg/m³
  4.    4 kg/m³
 Discuss Question
Answer: Option B. -> 2 kg/m³
Answer: (b).2 kg/m³
Question 70. A solid of density d is dropped in a liquid of density D, if d>D then,
  1.    Solid will completely sink
  2.    Solid will completely float
  3.    Solid will partially sink
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Solid will completely sink
Answer: (a).Solid will completely sink

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