Post Utme Elizade University 2018 Chemistry Question 9

Practice objective / multiple choice question 9 from the 2018 Post Utme Elizade University Chemistry examination.

Post Utme Elizade University 2018 Chemistry Objective / Multiple Choice
Question 9 POST_UTME_ELIZADE_UNIVERSITY • 2018 • CHEMISTRY • objective
Post Utme Elizade University 2018 Chemistry Question 9 diagram

A sample of air is collected over water and analyzed u\sing gas chromatography. The chromatogram shows three peaks with retention times of 5.2, 8.1, and 12.5 minutes. What is the composition of the air sample?

Answer Options

Correct Answer A. N_2 (5.2 min), O_2 (8.1 min), CO_2 (12.5 min)
B. N_2 (5.2 min), O_2 (8.1 min), H_2 (12.5 min)
C. N_2 (5.2 min), CO_2 (8.1 min), H_2 (12.5 min)
D. O_2 (5.2 min), CO_2 (8.1 min), H_2 (12.5 min)
Correct Answer
A
Correct Option:
N_2 (5.2 min), O_2 (8.1 min), CO_2 (12.5 min)

About This Question

This is Post Utme Elizade University 2018 Chemistry Question 9. It is one of the objective questions from the 2018 Post Utme Elizade University Chemistry examination.

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