Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. UNIBEN
  4. /
  5. General Paper
  6. /
  7. 2011/2012
  8. /
  9. Q20
Question 20

the loss of water of crystallization to the atmosphere by some crystalline salts is known as ..........

  • A.efflorescence
  • B.effervescence
  • C.deliquescence
  • D.phosphorescence
Objective

Question details

Exam body
UNIBEN
Subject
General Paper
Year
2011/2012
Question no.
#20
Type
Objective
Previous · Q19what is the number of an element if its atom contains 10 protons, 10 electrons… Next · Q21 carbon is often deposited in the exhaust pipe of cars because of the ........

More from this paper

  • Q16spirogyra, euglena and chlamydomonas share many characterisitcs except.......
  • Q17parasitic forms are not found among...........
  • Q18a good example of diploblastic organism is ........
  • Q22plastics are polymers whose production techniques involve all except......
  • Q23which of the following gases is produced when ammonia trioxonitrate (v) is…
  • Q24how many grammes of HCL will be required to react with 10g of NaOH…
See all General Paper 2011/2012 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