NECO offline past questions - All questions, answers & explanations in one app 25712
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Chemistry 2014 WAEC Past Questions

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NECO offline past questions - All questions, answers & explanations in one app 25712
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
21
Which of the following statements about volatile liquids is correct? They have
  • A. high vapour pressure and low boiling point
  • B. high vapour pressure and high boling point
  • C. low vapour pressure and low boining point
  • D. low vapour pressure and high boiling point
View Answer & Discuss WAEC 2014
22
The type of energy changes that accompany the mixing of a strong acid to a strong base is
  • A. electrical
  • B. heat
  • C. light
  • D. sound
View Answer & Discuss WAEC 2014
23
Zinc oxide is said to be amphoteric because it
  • A. forms an acid salt
  • B. is an insoluble base
  • C. forms a double salt
  • D. reacts with a base or an acid
View Answer & Discuss WAEC 2014
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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NECO offline past questions - All questions, answers & explanations in one app 25712
24
Which of the following substances with the corresponding pH value is an alkali?
Substance pH
  • A. Lime 2.4
  • B. Banana 4.6
  • C. Distilled water 7.0
  • D. Milk of magnesia 10.5
View Answer & Discuss (3) WAEC 2014
25
The gases produced when Cu(NO3)2(s) was heated are
  • A. NO and NO2
  • B. O2 and NO
  • C. NO2 and N2O4
  • D. O2 and NO2
View Answer & Discuss (8) WAEC 2014
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