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Chemistry Past Questions

Study and practice Chemistry past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

130 questions JAMB 2505 WAEC 1623 NECO 168 CUSTOM 10
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Past Questions

130 questions
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Question 1 of 10 130 total questions
Question 61
jamb 2019

Which of the following is the best starting material for the preparation of oxygen? Heating of trioxonitrate (v) with

APb
BZn
CCa
DNa
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Question 62
jamb 2019

Burning magnesium ribbon in air removes which of the following
(i) oxygen (ii) nitrogen (iii) argon and (iv) carbon(iv)oxide?

Ai and iv only
Bi, ii, iii and iv only
Ci only
Di and ii only
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Question 63
jamb 2019

A synthetic rubber is not obtained from the polymerization of?

Aneoprene
Bisoprene
Cbutandiene
Dhexane
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Question 64
jamb 2019

The IUPAC name of the compound CF\(_3\)CHBrCl is

A2-chloro-2-bromo-1,1,1-trifluoroethane
B2-bromo-2-chloro-1,1,1-trifluoroethane
C1-bromo-1-chloro-2,2,2-trifluoroethane
D1,1,1-trifluoro-2-bromo-2-chloroethane
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Question 65
jamb 2019

Hydrocarbons which will react with Tollen's reagent conform to the general formula

AC\(_n\)H\(_{2n}\)
BC\(_n\)H\(_{2n + 2}\)
CC\(_n\)H\(_{2n - 2}\)
DC\(_n\)H\(_{2n + 1}\)OH
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Question 66
jamb 2019

2-methylprop-1-ene is an isomer of?

A3-methyl but-1-ene
B2-methyl but-1-ene
Cbut-2-ene
Dpent-2-ene
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Question 67
jamb 2019

A certain hydrocarbon on complete combustion at s.t.p produced 89.6dm\(^3\) of CO\(_2\) and 54g of water. The hydrocarbon should be?

AC\(_6\)H\(_6\)
BC\(_4\)H\(_{10}\)
CC\(_5\)H\(_{10}\)
DC\(_4\)H\(_6\)
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Question 68
jamb 2019

The IUPAC name for CH\(_3\)CH\(_2\)COOCH\(_2\)CH\(_3\) is

Amethylpropanoate
Bethylethanoate
Cethylpropanoate
Dmethylethanoate
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Question 69
jamb 2019

Which of the following will give a precipitate with an aqueous solution of copper (I) chloride?

ABut-2-ene
BBut-1-ene
CBut-2-yne
DBut-1-yne
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Question 70
jamb 2019

A secondary alkanol can be oxidized to give an?

Aalkanone
Balkyne
Calkanoic acid
Dalkanal
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