[ Post UTME Begins ]: View The List Of Schools That Have Released 2026 Post-UTME Forms.
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
  1. Home
  2. Classroom
  3. Chemistry
  4. WAEC 2019
  5. An organic compound...

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. What is...

Chemistry
WAEC 2019

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. What is the empirical formula of the compound?

[ H = 1.0. C = 12.0, O = 16.0 ]

  • A. C\(_3\)H\(_8\)O
  • B. C\(_6\)H\(_{12}\)O
  • C. C\(_6\)H\(_{12}\)O\(_2\)
  • D. C\(_{12}\)H\(_{12}\)O\(_{11}\)
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Correct Answer: Option B
Explanation

C = 72 / 12       H = 12 / 1       O = 16 / 16

C = 6               H = 12             O = 1

: EMPIRICAL FORMULA

C\(_6\)H\(_{12}\)O

Previous Next
Go back to Chem classroom

Report an Error Ask A Question Download App
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
{{ text }}

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

Post your Contribution

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

{{ quote.posted_by.display_name }}
{{ settings.form_textarea_description }}
 
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Your School's Whatsapp Group - Join Us now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now