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3836

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. What is the empirical formula of the compound?

[ H = 1.0. C = 12.0, O = 16.0 ]

  • A. C\(_3\)H\(_8\)O
  • B. C\(_6\)H\(_12\)O
  • C. C\(_6\)H\(_12\)O\(_2\)
  • D. C\(_12\)H\(_12\)O\(_11\)
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3837

When excess chlorine is mixed with ethane at room temperature, the product formed is?

  • A. 1,2-dichloroethane
  • B. 1,2-dichloroethene
  • C. 1,1-dichloroethane
  • D. 1,1-dichloroethene
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3838

which of the following reagents could be used to distinguish between propan-1-ol and propan-2-ol

  • A. H+ / K2Cr2O7
  • B. I\(_2\) / OH-
  • C. CH\(_3\)COOH
  • D. NaCl
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3839

If a catalyst is added to a system, the temperature and the pressure remain constant, there would be no effect on the? 

  • A. activation energy of the reaction
  • B. rate of the reaction
  • C. rate of the reverse reaction
  • D. heat of reaction
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3840

consider the following reaction equation: 2NH\(_3 \) .+ 3Cl\(_2\) → N2 + 6HCl. 

NH\(_3\) is acting as?

  • A. a reducing agent
  • B. a dehydrating agent
  • C. a drying agent
  • D. an oxidizing agent
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