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4181

When air in a syringe is compressed such that there is no change in temperature, the

  • A. air liquefies
  • B. pressure increases
  • C. intermolecular space increases
  • D. density decreases
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4182

Which of the following statements about liquids is/are true?


I. Liquids maintain their volume at constant temperature.
II. Liquids have fixed shape
III. Liquids do not diffuse
IV. Change in pressure affects volume of liquids

  • A. I only
  • B. IV only
  • C. I and IV only
  • D. II and III only
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4183

A hydrogen chloride gas reacted with oxygen gas to yield water and chlorine gas. The mole ratio of the hydrogen chloride gas to water is

  • A. 1:3
  • B. 2:1
  • C. 3:1
  • D. 4:1
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4184

What number of moles of oxygen would exert a pressure of 10 atm at 320 K in an 8.2 dm\(^{3}\) cylinder?
[R=0.082 atm dm\(^{-3}\) mol\(^{-1}\) K\(^{-1}\)]

  • A. 0.32
  • B. 1.52
  • C. 3.13
  • D. 31.25
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4185

If 50 cm\(^{3}\) of a saturated solution of KNO\(_{3}\) at 40 °C contained 5.05 g of the salt, its solubility at the same temperature would be
[KNO\(_{3}\) = 101]

  • A. 1.0 mol dm\(^{-3}\)
  • B. 1.5 mol dm\(^{-3}\)
  • C. 2.0 mol dm\(^{-3}\)
  • D. 5.0 mol dm\(^{-3}\)
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