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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1701
NH3(g) + HCl(s) → NH 4Cl (s)

The entropy change in the system above is
  • A. positive
  • B. zero
  • C. negative
  • D. intermediate
View Answer & Discuss (5) JAMB 2015
1702

Detergents are manufactured with straight hydrocarbon chains, is to make them

  • A. soluble
  • B. biodegradable
  • C. cheaper
  • D. foamy
View Answer & Discuss (1) JAMB 2015
1703

Which of the following results in the fall of acid rain?

  • A. oxide of lead
  • B. particulate matter
  • C. oxides of sulphur
  • D. gaseous hydrocarbon
View Answer & Discuss (7) JAMB 2015
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1704

The furring of kettles is caused by the presence of what compound in water?

  • A. calcium tetraoxosulphate (IV)
  • B. calcium hydrogentrioxocarbonate (IV)
  • C. calcium hydroxide
  • D. calcium trioxocarbonate (IV)
View Answer & Discuss (16) JAMB 2015
1705
A difference between chemical and physical change is that in a chemical change
  • A. oxygen is consumed
  • B. heat is supplied
  • C. the reversible process occurs
  • D. a new substance is formed
View Answer & Discuss JAMB 2015
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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