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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 1:

What is the concentration of a solution containing 2g of NaOH in 100cm³ of solution?
[Na = 23, O = 16, H = 1]

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A 0.40 mol dm^-3
B 0.50 mol dm^-3
C 0.05 mol dm^-3
D 0.30 mol dm^-3

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Question 2:

What is the concentration of a solution containing 2g of NaOH in 100cm³ of solution?
[Na = 23, O = 16, H = 1]

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A 0.40 mol dm^-3
B 0.50 mol dm^-3
C 0.05 mol dm^-3
D 0.30 mol dm^-3

View Answer & Explanation

Question 3:

Which of the following properties is NOT peculiar to matter?

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A Kinetic energy of particles increase from solid to gas
B Random motion of particles increases from liquid to gas
C Orderliness of particles increases from gas to liquid
D Random motion of particles increases from gas to solid

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Question 4:

From the diagram above, an ideal can be represented by

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A M
B N
C K
D L

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Question 5:

Which of the following questions is correct about the periodic table?

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A The non-metallic properties of the elements tend to decrease across each period
B The valence electrons of the elements increase progressively across the period
C Elements in the same group have the same numbeer of electron shells
D Elements in the same period have the number of valence electrons

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