[ Post UTME Begins ]: View The List Of Schools That Have Released 2026 Post-UTME Forms.
Your School's Whatsapp Group - Join Us now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
  1. Home
  2. Classroom
  3. Chemistry
  4. JAMB 1979
  5. How many grams of HB...

How many grams of HBr would exactly be required to react with 2 g of...

Chemistry
JAMB 1979

How many grams of HBr would exactly be required to react with 2 g of propyne? (C =12, H=1, Br = 80)

  • A. 4. 1 g
  • B. 6. 1 g
  • C. 8. 1g
  • D. 16.2g
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
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Correct Answer: Option C
Explanation

2HBr + C3H4 \(\to\) C3H6 + 2Br

162gms of HBr reacts with 40gms of propyne 2gms of propyne will react with

\(\frac{162}{40} \times \frac{2}{1}\) = 8.1gms HBr

Previous Next
Go back to Chem classroom

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