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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 36:

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

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

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Question 37:

Which of the following metals is the least reactive?

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A Pb
B Sn
C Hg
D Au

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Question 38:

Geometric isomerism can exist in

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

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Question 39:

Alkanals can be distinguished from alkanones by the reaction with

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

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Question 40:

The isomers of C₃H₈O ARE

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

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