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886
Deliquescent substances are also?
  • A. efflorescent
  • B. anhydrous
  • C. hygroscopic
  • D. insoluble
View Answer & Discuss (16) JAMB 1995
887
When plastics and packaging materials made from chloroethene are burnt in the open, the mixture of gases released into the atmosphere is most likely to contain?
  • A. ethane
  • B. chlorine
  • C. hydrogen chloride
  • D. ethene
View Answer & Discuss (4) JAMB 1995
888
The difference between colloides and and suspensions is brought out clearly by the fact that while colloids?
  • A. do not scatter light, suspensions do
  • B. can be separated by filtration, suspension cannot be so separated
  • C. can be separated by a membrane, suspensions cannot
  • D. do not settle out on standing, suspensions do
View Answer & Discuss (3) JAMB 1995
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889

In general, an increase in temperature increases the solubility of a solute in water because?

  • A. more solute molecules collide with each other
  • B. most solutes dissolve with the evoltion of heat
  • C. more solute molecules dissociate at hihger temperatures
  • D. most solutes dissolve with absorption of heat
View Answer & Discuss (8) JAMB 1995
890
Neutralization involves a reaction between H3O+ and?
  • A. CI-
  • B. OH-
  • C. NO3-
  • D. CO32-
View Answer & Discuss (2) JAMB 1995
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