Chemistry 1994 JAMB Past Questions

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The set-up above would be useful for determining the amount of

A. oxygen in air
B. water vapour in air
C. CO₂ in air
D. arygen in air

View Answer & Discuss (3) JAMB 1994

The ∆H for the reaction represented by the energy profile above is

A. -100 kJ mol-^-1
B. + 100 kJ mol^-1
C. +50 kJ mol^-1
D. -50 kJ mol^-1

View Answer & Discuss (13) JAMB 1994

In the diagram above the activation energy is represented by

A. y - x
B. x
C. x - z
D. y

View Answer & Discuss (8) JAMB 1994

2HCL(ag) + CaCO3(ag) → CaCL2(ag) + H2O(1) + CO from the reaction above, which of the following curves represents the consumption of calcium trioxocarbonate (IV) as dilute HCL is added to it?

A. L
B. M
C. N
D. P

View Answer & Discuss (10) JAMB 1994

In the diagram above, R is a mixture of?

A. potassium tetraxochlorate (VII) and concentrated H₂SO₄
B. potassium trioxochlorate (V) and concentrated H₂SO₄
C. potassium tetratoxomanganate (VII) and concentrated HCI
D. manganes (IV) oxide and concentrated HCI

View Answer & Discuss (19) JAMB 1994

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Chemistry 1994 JAMB Past Questions

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