Chemistry 2013 Jamb Past Questions and Answers

Question 36 :

• JAMB 2013

Which of the following fraction is used as raw material for the cracking process?

A. Kerosine
B. Lubricating oil
C. Bitumen
D. Diesel oils

Question 37 :

• JAMB 2013

An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the empirical formularn(C=12,H =1, O=16)

A. C ₅H ₁₂O
B. C ₃H ₈O
C. C ₆H ₁₃O ₂
D. C ₄H ₉O

Question 38 :

• JAMB 2013

From the diagram above, an ideal gas is represented by

A. Z
B. W
C. X
D. Y

Question 39 :

• JAMB 2013

In the graph above, the activation energy of the catalyzed reaction is

A. 100KJ
B. 300KJ
C. 250KJ
D. 200KJ

Question 40 :

• JAMB 2013

Choose the correct option from the graph above . 3Fe_(S) + 4H₂O_(g) ⇌ Fe₃O_4(s) + 4H_2(g). The equilibrium constant, K, of the reaction above is represented as

A. A
B. B
C. C
D. D