Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. DELSU
  4. /
  5. Chemistry
  6. /
  7. 2014/2015
  8. /
  9. Q1
Question 1

A certain compound, on analysis gave 2.028 of Carbon, 0.35g of Hydrogen, and 2.08g of Oxygen. If the molecular mass is 90, calculate the molecular formula.

  • A.CH2O
  • B.C2H4O
  • C.C3H6O
  • D.C4H8O4
Objective

Question details

Exam body
DELSU
Subject
Chemistry
Year
2014/2015
Question no.
#1
Type
Objective
Next · Q2 An effect of thermal pollution in watler bodies is that the

More from this paper

  • Q3Which of the following compounds is soapless detergent
  • Q4How many atoms are present in 6.0g of magnesium [Mg = 24, Na = 6.02 x 10 23…
  • Q5Which of the following pollutants is associated with brain damage?
  • Q6The maximum number electrons in the L shell of an atom is
  • Q7Calculate the volume of 0.5moldm -3 H 2 SO 4 that is neutralized by 25cm 3 of…
  • Q882. Which one of these is not found in an atom
See all Chemistry 2014/2015 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