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1.  A given amount of gas occupies 10.0dm5 at 4atm and 273°C. The number of moles of the gas present is [Molar volume of gas at s.t.p = 22.4dm3]
  • A. 0.89 mol
  • B. 1.90 mol
  • C. 3.80 mol
  • D. 5.70 mol

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2.According to Charles’ law, the volume of a gas becomes zero at
  • A. 0°C
  • B. -100°C
  • C. -273°C
  • D. -373°C

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3. A substance that is used as a ripening agent for fruits is
  • A. ethene
  • B. propane
  • C. methane
  • D. butane

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4. The Sulphide which is insoluble in dilute hydrochloric acid is
  • A. FeS
  • B. CuS
  • C. ZnS
  • D. Na2S

 

 
5.What is the PH of 0.00 1 moldm3 solution of the sodium hydroxide
  • A. 14
  • B. 13
  • C. 12
  • D. 11

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6.The type of bonding in [Cu(NH3)4]2+ is 
  • A. coordinate
  • B. electrovalent
  • C. metallic
  • D. covalent

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7.Which of the following is an example of a chemical change?
  • A. dissolution of salt in water
  • B. rusting of iron
  • C. melting of ice
  • D. separating a mixture by distillation

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8. To what temperature must a gas at 273k be heated in order to double both its volume and pressure?
  • A. 298K
  • B. 546K
  • C. 819K
  • D. 1092K

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9. According to the Kinetic Theory an increase in temperature causes the kinetic energy of particles to
  • A. decrease
  • B. increase
  • C. be zero
  • D. remain constant

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10. An element used in the production of matches is
  • A. nitrogen
  • B. aluminium
  • C. copper
  • D. sulphur

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