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161

In which of the following reactions has the oxidation number of nitrogen increased?

  • A. 2NO(g) + Br2(l) → 2NOBr(l)
  • B. 2NO(g) + O2(g) → 2NO2(g)
  • C. FeSO4(aq) + NO(g) → Fe(NO)SO4(s)
  • D. 2NO(g) + Cl2(g) → 2NOCl(l)
View Answer & Discuss (14) JAMB 2001
162

NH\(_3\)\(_{(g)}\) + HCl\(_{(g)}\) → NH\(_4\)Cl\(_{(s)}\)
The entropy change in the system above is

  • A. negative
  • B. indeterminate
  • C. positive
  • D. zero
View Answer & Discuss (11) JAMB 2001
163

Fermentation is the

  • A. breaking down of carbohydrate to glucose
  • B. conversion of sugar to alcohol in the presence of yeast
  • C. breaking down of sugar to carbohydrate
  • D. conversion of alcohol to sugar in the presence of yeast
View Answer & Discuss (2) JAMB 2001
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
164

The general formula for the alkanals is

  • A. ROH
  • B. R2CO
  • C. RCOOR1
  • D. RCHO
View Answer & Discuss (2) JAMB 2001
165

The main impurity in iron ore during the extraction of iron is

  • A. Silicon (IV) oxide
  • B. Carbon (IV) oxide
  • C. Calcium trioxosilicate
  • D. Sulphur (II) oxide
View Answer & Discuss (6) JAMB 2001
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