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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.

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

45 questions
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Question 1 of 5 45 total questions
Question 21
jamb 1988
Which of the following in aqueous solution is neutral to litmus?
ANH4CI
BNaCO3
CFeCl3
DNaCl
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Question 22
jamb 1988
Which of the following dilute solutions has the lowest pH value?
ACalcium trioxocarbonate (IV)
BSodium trioxocarbonate (IV)
CHydrochloric acid
DEthanoic acid
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Question 23
jamb 1988
A substance S is isomorphous with another substance R. When a tiny crystals of S is added into a supersaturated solution of R?
AS dissolves in the solution
Bcrystals of R are precipitated
Cthere is no observable change
DR and S react to generate heat
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Question 24
jamb 1988

The ion that may be assumed to have negligible concentration in a sample of water that lathers readily with soap is?

AMg+
BK+
CCO22-
DHCO3
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Question 25
jamb 1988

Which of the following statements is NOT correct?

AThe average kinetic energy of a gas is directly proportional to its temperature
BAt constant temperature, the volume of a gas increases as the pressure increases
CThe pressure of a gas is directly proportional to the density.
DThe temperature of a gas is directly proportional to its volume
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