Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. FUTA
  4. /
  5. Chemistry
  6. /
  7. 2008/2009
  8. /
  9. Q10
Question 10

A sample of an oxide of mercury weighed 1.009 when this was heated, oxygen was given off, and 1.0090 mercury metal only was left. What is the formula of the oxide?

  • A.HgO
  • B.HgO2
  • C.HgO4
  • D.None of the above
Objective

Question details

Exam body
FUTA
Subject
Chemistry
Year
2008/2009
Question no.
#10
Type
Objective
Previous · Q9Consider the following exothermic reactions 2SO 2(g) + O 2(g) ⟶ 2SO 3(g) If the… Next · Q11 On heating under suitable conditions liter of a monatomic gas. X combines with 1…

More from this paper

  • Q6What's the IUPAC name for $$\begin{matrix}CH_3 \\ |\\CH_3CCH&=&CH_2\\|\\H…
  • Q70.1 Faraday of electricity was passed through solution of copper (II) sulphate…
  • Q8Two metallic ions associated with hard water are
  • Q12Weighted salts Y and Z were left exposed in the laboratory overnight In the…
  • Q13When excess ethanol is heated 140°C in the presence of concentrated sulphuric…
  • Q14The best way of collecting chlorine is
See all Chemistry 2008/2009 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