Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. WAEC
  4. /
  5. Chemistry
  6. /
  7. 1989
  8. /
  9. Q21
Question 21

Which of the following is used extensively in manufacturing photographic chemicals?

  • A.Aluminium chloride
  • B.Zinc chloride
  • C.Silver chloride
  • D.Mercury (ll) chloride
  • E.lron (ll) chloride
Objective

Question details

Exam body
WAEC
Subject
Chemistry
Year
1989
Question no.
#21
Type
Objective
Previous · Q20Given the following half-cell reaction; 2Cl (aq) → CI 2(g) + 2e, how many mole… Next · Q22 Given that 1 mole of carbon -12 weighs 12.0g, how many atoms are there in 24.0g…

More from this paper

  • Q17Why is potassium fluoride added to the electrolyte in the extraction of sodium…
  • Q18The rate of the hydrogen in the reaction Zn (s) + 2HCI (aq) → ZnCI 2(g) + H…
  • Q19Octane number is highest in petrol containing a high proportion of
  • Q23What is the concentration, in mol dm 3 , of solution is allowed to evaporate the…
  • Q24If sulphur is dissolved in carbon (IV) sulphide and the solution is allowed to…
  • Q25Given that for the reaction. N2(g) + 3H2(g) ⇌ 2NH3(g) ∆H = -92kJ. What is the…
See all Chemistry 1989 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy