Jamb Chemistry 2012 Past Questions and Answers

Question 36:

• JAMB 2012

A common characteristic between zinc and the other transition elements is the ability to

A. Have variable oxidation states
B. From complex ions
C. Act as a catalyst
D. From coloured ions

Question 37:

• JAMB 2012

Which of the following metals is the least reactive?

A. Pb
B. Sn
C. Hg
D. Au

Question 38:

• JAMB 2012

Geometric isomerism can exist in

A. Hex-3-ene
B. Hexane
C. Prop-l-ene
D. 3-methyl but -l-ene

Question 39:

• JAMB 2012

Alkanals can be distinguished from alkanones by the reaction with

A. Sudan lll stain
B. Starch iodide paper
C. Lithium tetrahydrido aluminate (lll)
D. Fehling's solution

Question 40:

• JAMB 2012

The isomers of C₃H₈O ARE

A. 1 - propanol and 2 - propanol
B. 1 - propanol and 1 - propanol
C. 2 - propanol and 2 - propanone
D. 2 - propanol and 1 - propanol