Post Utme Chemistry Past Questions and Answers

Question 596:

How many coulombs of electricity are passed through a solution in which 6.5A are allowed is run for 1.0hours

A. -3.90 x 10²C
B. 5.50 x 10³C
C. 6.54 x 10³C
D. 2.34 x 10⁴C

Question 597:

Complete oxidation of popan-1-Ol gives

A. Propanol
B. Propan-2-ol
C. Propanic acid
D. Propanal

Question 598:

How many electrons are present in the 3P orbital of an element represented as 3717M

A. 1
B. 2
C. 3
D. 4
E. 5

Question 599:

A gas responsible for most of the fatal explosion in coal mines is ____________

A. Butane
B. Ethene
C. Ethane
D. Methane

Question 600:

What is the percentage by mass of copper in copper (i) oxide ____________

A. 40.0
B. 50.0
C. 69.6
D. 80.0
E. 88.9