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
  1. Home
  2. Classroom
  3. Chemistry
  4. WAEC 2019

Chemistry 2019 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
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
36

consider the reaction represented by the following equation: 2SO\(_2\) + O\(_2\)  ⇌ 2SO\(_3\) 

A decrease in the pressure of the reaction would

  • A. decrease in the concentration of SO\(_2\)
  • B. have no effect on the reaction
  • C. shift the equilibrium position to the left
  • D. shift the equilibrium position to the right
View Answer & Discuss WAEC 2019
37

In a mixture of gases which do not react chemically together, the pressure of the individual gas is?

  • A. atmospheric pressure
  • B. vapor pressure
  • C. total pressure
  • D. partial pressure
View Answer & Discuss WAEC 2019
38

Biotechnology is applied in the? 

  • A. treatment of sewage
  • B. treatment of water
  • C. purification of chemicals
  • D. purification of metals
View Answer & Discuss (1) WAEC 2019
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
39

which of the following organic compounds has the lowest boiling point?

  • A. C\(_6\)H\(_14\)
  • B. C\(_5\)H\(_12\)
  • C. C\(_4\)H\(_10\)
  • D. ( CH\(_3\) )\(_3\)
View Answer & Discuss WAEC 2019
40

Consider the following reaction represented by the following equation: C\(_2\)H\(_2\)  \(^{H\(_2\)}_{→}\) X  \(^{H\(_2\)}_{→}\) Y.  X and Y respectively are?

  • A. ethane and ethene
  • B. ethene and ethane
  • C. ethyne and ethene
  • D. ethane and ethyne
View Answer & Discuss WAEC 2019
Start a Free Practice Test
 
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