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
  1. Home
  2. Classroom
  3. Chemistry
  4. WAEC 2015

Chemistry 2015 WAEC Past Questions

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

NECO offline past questions - All questions, answers & explanations in one app 25712
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
31
Solubility is practically applied in
  • A. Fractional distillation
  • B. The determination of pH
  • C. The determination of saturation in hydrocarbons
  • D. Solvent extraction
View Answer & Discuss WAEC 2015
32
Which of the following compounds is the least soluble in water?
  • A. CaCl2
  • B. CaSO4
  • C. NaCl
  • D. Na2SO4
View Answer & Discuss (1) WAEC 2015
33
A substance which dissolves readily in organic solvent would
  • A. Be a covalent compound
  • B. Have strong electrostatic forces of attraction
  • C. have a high melting point
  • D. Conduct electricity in molten state
View Answer & Discuss WAEC 2015
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
Join your school's WhatsApp group
34
A change in the temperature of a saturated solution disturbs the equilibrium between the
  • A. Undissolved solute and the solvent
  • B. Dissolved solute and the solvent
  • C. Dissolved solute and the undissolved solute
  • D. Dissolved solute and the solution
View Answer & Discuss (2) WAEC 2015
35
Which of the following statements about an electrochemical cell is correct? Oxidation occurs
  • A. At the anode
  • B. At the cathode
  • C. Through the salt bridge
  • D. In the aqueous solution
View Answer & Discuss (1) WAEC 2015
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