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MCQs

Total Questions : 345 | Page 7 of 35 pages
Question 61. A hydrocarbon which is composed of only one carbon and hydrogen is called
  1.    methylidyne
  2.    propane
  3.    methane
  4.    ethane
 Discuss Question
Answer: Option A. -> methylidyne
Answer: (a).methylidyne
Question 62. The mole concept helps us in the calculation of
  1.    reacting masses
  2.    volume of gases
  3.    volumes and concentrations of solutions
  4.    mass of solution
 Discuss Question
Answer: Option D. -> mass of solution
Answer: (d).mass of solution
Question 63. A large room which is filled with 2600 moles of gases contains 60 kg of nitrogen and 17 kg of
  1.    oxygen
  2.    hydrogen
  3.    carbon dioxide
  4.    carbon monoxide
 Discuss Question
Answer: Option A. -> oxygen
Answer: (a).oxygen
Question 64. The hypothesis that the equal volume of all gases possess the same number of molecules is called
  1.    Avogadro constant
  2.    Avogadro hypothesis
  3.    Avogadro's equilibria
  4.    Avogadro's theory
 Discuss Question
Answer: Option B. -> Avogadro hypothesis
Answer: (b).Avogadro hypothesis
Question 65. Real gases do not react as expected the
  1.    ideal gas
  2.    noble gas
  3.    non-ideal gas
  4.    inert gas
 Discuss Question
Answer: Option A. -> ideal gas
Answer: (a).ideal gas
Question 66. The force of attraction and repulsion in the gaseous molecule is
  1.    present
  2.    absent
  3.    slight
  4.    huge
 Discuss Question
Answer: Option B. -> absent
Answer: (b).absent
Question 67. The relative molecular mass of a substance can be found by using
  1.    relative spectrometer
  2.    mass spectrometer
  3.    weight spectrometer
  4.    radius spectrometer
 Discuss Question
Answer: Option B. -> mass spectrometer
Answer: (b).mass spectrometer
Question 68. The volume occupied by 0.5 moles of carbon dioxide at a pressure of 150kPa and the temperature of 19 °C will be
  1.    8.09 dm³
  2.    8.89 dm³
  3.    9.09 dm³
  4.    8.13 dm³
 Discuss Question
Answer: Option A. -> 8.09 dm³
Answer: (a).8.09 dm³
Question 69. The volume that a gas occupies, depends upon its
  1.    pressure only
  2.    temperature only
  3.    humidity
  4.    pressure and temperature
 Discuss Question
Answer: Option D. -> pressure and temperature
Answer: (d).pressure and temperature
Question 70. Durian fruit has a very strong smell which is mostly found in
  1.    Malaysia only
  2.    Indonesia only
  3.    Maldives
  4.    Malaysia and Indonesia
 Discuss Question
Answer: Option D. -> Malaysia and Indonesia
Answer: (d).Malaysia and Indonesia

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