Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Chemistry 2017 WAEC Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO offline past questions - All questions, answers & explanations in one app 25712
21

Which of the following statements about endothermic reaction is correct?

  • A. Activation energy is high
  • B. A catalyst is required
  • C. It occurs reversibly
  • D. Heat energy is absorbed
View Answer & Discuss WAEC 2017
22

A 0.1\(moldm^{-3}\) solution of sodium hydroxide was diluted with distilled water to 0.001\(moldm^{-3}\). What is the dilution factor?

  • A. 1000.00
  • B. 100.00
  • C. 10.00
  • D. 0.01
View Answer & Discuss (5) WAEC 2017
23

Graphite and Diamond are similar in that they

  • A. have octahedral shape
  • B. have same density
  • C. form carbon(IV) oxide on combustion
  • D. conduct electricity
View Answer & Discuss WAEC 2017
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO offline past questions - All questions, answers & explanations in one app 25712
24

In a saturated solution at a given temperature, the undissolved solutes are in equilibrium with

  • A. the solvent
  • B. dissolved solute particles
  • C. the saturated solution
  • D. insoluble solute particles
View Answer & Discuss (11) WAEC 2017
25

The number of atoms present in 2.5moles of a triatomic gas is equivalent to   [1mole = \(6.02\times 10^{23}\)]

  • A. \(2.5\times 10^{23}\)
  • B. \(1.5\times 10^{23}\)
  • C. \(1.5\times 10^{24}\)
  • D. \(2.5\times 10^{24}\)
View Answer & Discuss (2) WAEC 2017
Start a Free Practice Test
 
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group