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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 1:

There is a large temperature interval between the melting point and the boiling point of a metal because?

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A Metals have very high melting points
B Metals conduct heat very repaidly
C Melting does not break the metalic bond but boiling does
D The crystal lattice of metals is easily broken

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Question 2:

There is a large temperature interval between the melting point and the boiling point of a metal because?

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A Metals have very high melting points
B Metals conduct heat very repaidly
C Melting does not break the metalic bond but boiling does
D The crystal lattice of metals is easily broken

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Question 3:

How many moles of (H+) are there in 1 dm³ of 0.5 M solution of H₂SO₄?

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A 2.0 moles
B 1.0 moles
C 0.5 mole
D 0.25 mole

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Question 4:

wH₂SO₄ + xAI(OH)₃ â†’ yH₂O + = zAI₂(SO₄)₃. The respective values of w.x.y and z in the equation above are?

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A 2,2,5 and 1
B 3,2,5 and 2
C 3,2,6 and 1
D 2,2,6 and 2

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Question 5:

A given mass of gas occupies 2 dm³ at 300k. At what temperature will its volume be doubled keeping the pressure constant?

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A 400 k
B 480 k
C 550 k
D 600 k

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