POST-UTME Chemistry Past Questions, Answers & Explanations - Chemistry

Post Utme Chemistry Questions

Question 96:

How many moles of limestone will he required to produce \(5.6 \mathrm{~g}\) of \(\mathrm{CaO}\) ?

A \(0.20 \mathrm{~mol}\)
B \(0.10 \mathrm{~mol}\)
C \(1.12 \mathrm{~mol}\)
D \(0.56 \mathrm{~mol}\)

Question 97:

One mole of propane is mixed with five moles of oxygen. The mixture is ignited and the propane bums completely. What is the volume of the product at s.t.p? [M.V.G \(=22.4 \mathrm{dm} 3\) ]

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A \(112.0 \mathrm{dm}^{3}\)
B \(67.2 \mathrm{dm}^{3}\)
C \(56.0 \mathrm{dm}^{3}\)
D \(44.8 \mathrm{dm}^{3}\)

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Question 98:

Maximum number of electrons is found in one of these

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A \(4 \mathrm{~s}\)
B \(4 p\)
C \(4 \mathrm{~d}\)
D \(4 \mathrm{f}\)

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Question 99:

What current in ampere will deposit 0.27g of aluminium in 2 hours? [Al=27, F=96500C].

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A 3.2
B 8
C 0.4
D 16

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Question 100:

What is the likely formula of a ompound formed between element M in group 2 and between element X in group 7?

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A \(M_7X_2\)
B \(MX_2\)
C M₂X7
D M₂X

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