WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
  1. Home
  2. Classroom
  3. Chemistry
  4. WAEC 1989

Chemistry 1989 WAEC Past Questions

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

WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free
26
The following are s-block elements except
  • A. lithium
  • B. magnesium
  • C. potassium
  • D. calcium
  • E. aluminium
View Answer & Discuss WAEC 1989
27
Which of the following statements is not true of tin? it
  • A. is a p-block element
  • B. is extracted from cassiterite SnO 2
  • C. is used for protecting iron containers from corrosion
  • D. combines with copper to form the alloy brass
  • E. shows two oxidation states, + 2 and + 4 in most of its compounds
View Answer & Discuss (3) WAEC 1989
28

What quantity of copper will be deposited by the same quantity of electricity that deposited 9.0g of aluminum? (A = 27, Cu = 64)

  • A. 64g
  • B. 32g
  • C. 7.1g
  • D. 6.4g
  • E. 3.2g
View Answer & Discuss (5) WAEC 1989
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
29
The electronic configuration of two atoms X and Y are as follows: X - 1s 2 2s 22p 63s 1, Y -1s 22s 22p 63s23p 64s 2 which of the statements below is true of the position of X and Y in the Periodic Table?
  • A. x belongs to group 1, Y belongs to period 2,
  • B. x belongs to group 1, Y belongs to period 4
  • C. x belongs to group 2, Y belongs to period 1
  • D. x belongs to group 3, Y belongs to period 2
  • E. x belongs to group 3, Y belongs to period 4
View Answer & Discuss (6) WAEC 1989
30
Which of the following is a condition for a spontaneous reaction?
  • A. ∆H -T is zero
  • B. ∆H-T∆ S is positive
  • C. ∆H-T∆ S is negative
  • D. ∆S is zero
  • E. ∆S is positive
View Answer & Discuss (3) WAEC 1989
Start a Free Practice Test
 
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts