Search SchoolNGR

Tuesday, 11 August 2026
Register . Login

Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 696:
In the equation 2Na + 2H₂O → 2NaOH + H₂, the ratio of sodium hydroxide to hydrogen is:
  • A 3 : 2 ratio
  • B 2 : 1 ratio
  • C 1 : 2 ratio
  • D 1 : 1 ratio
View Answer & Explanation
Question 697:
The formula C₈H₁₄ belongs to:
  • A Octanol
  • B Octene
  • C Octyne
  • D Octane
View Answer & Explanation
Question 698:
Which prefix indicates nine carbon atoms?
  • A Pent-
  • B Oct-
  • C Non-
  • D Dec-
View Answer & Explanation
Question 699:
The IUPAC name of C₆H₁₂ is:
  • A Hexene
  • B Hexane
  • C Hexanol
  • D Hexyne
View Answer & Explanation
Question 700:
Which compound contains a carbon-carbon triple bond?
  • A Hexyne
  • B Hexene
  • C Hexane
  • D Hexanol
View Answer & Explanation