Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. WAEC
  4. /
  5. Chemistry
  6. /
  7. 2001
  8. /
  9. Q31
Question 31

Which of the following constitutes an advantage in the use of hard water?

  • A.Formation of scum with soap
  • B.Furring of kettles
  • C.Blockage of water pipes
  • D.Formation of strong bones
Objective

Question details

Exam body
WAEC
Subject
Chemistry
Year
2001
Question no.
#31
Type
Objective
Previous · Q30What is the function of H 2 SO 4 in the following reaction? C 12 H 22 O 11 conc… Next · Q32 Sugars can be hydrolyzed at room temperature by the action of

More from this paper

  • Q27Benzene produces more soot than ethene on burning because benzene
  • Q28One of the products of combustion of pentane in excess air is
  • Q29Which of the following polymers contains nitrogen?
  • Q33If 10 cm 3 of distilled water is added to 10 cm 3 of an aqueous salt solution…
  • Q34Which of the following reactions represents the change that occurs when a…
  • Q35Acidic industrial waste can be treated with
See all Chemistry 2001 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