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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.

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

88 questions
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Question 1 of 8 88 total questions
Question 41
jamb 2023

Which noble gas is radioactive and is produced as a decay product of uranium and thorium?

AArgon
BKrypton
CRadon
DNeon
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Question 42
jamb 2023

What happens to the position of equilibrium, if a reversible exothermic reaction is subjected to a decrease in temperature?

AThe position of equilibrium shifts to the left
BThe position of equilibrium shifts to the right.
CThe position of equilibrium remains unchanged
DThe reaction stops
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Question 43
jamb 2023
The gas given off when a metal reacts with an acid is
Anitrogen
Bchlorine
Chydrogen
Doxygen
Question 44
jamb 2023
An acid turns blue litmus paper
Ared
Bwhite
Cgreen
Dblue
Question 45
jamb 2023
The number of electrons in a neutral atom of atomic number 11 is
A12
B11
C23
D10
Question 46
jamb 2023
The pH of a neutral solution is
A7
B14
C1
D0
Question 47
jamb 2023
Which gas is most abundant in the atmosphere?
Anitrogen
Bcarbon dioxide
Coxygen
Dargon
Question 48
jamb 2023
The chemical symbol for sodium is
ANa
BS
CN
DSo
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