2007
MnO2(s) + xHCl(aq) → MnCl2(aq) + yH2O(l) + zCl2(g)In the equation above, what are the values of x, y and z respectively?
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2007 JAMB UTME Chemistry Past Questions
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2007
Calculate the number of moles of HCl present in 20cm3 of a 0.75M solution of the acid
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2007
Some solid NaOH dissolves spontaneously in initially unsaturated water while temperature and pressure are kept constant. Which result must occur for the combined solid-and-water system?
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2007
If the electron configuration of an element is 1s2 2s2 2p5, how many unpaired electrons are there?
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2007
How many electrons are in the L shell of 3115P?
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2007
What is the volume of oxygen required to burn complete 45 cm3 of methane at s.t.p?
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2007
Which experiment led to the measurement of the charge on an electron?
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2007
CH3CH2Cl + KCN → CH3CH2CN + KClIn the reaction above, the cyanide is
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2007
Which of the following represents an aromatic compound?
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2007
A mixture of petrol and water can be separated through
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2007
A metal X forms two bromides with the formulae XBr2 and XBr3. What type of bonding exists between X and bromine in the bromide?
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2007
the elements that belong to the third period of the periodic table are
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2007
Which of the following alkanes has the highest boiling point?
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2007
The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called
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2007
How many structural isomers have the molecular formula C4H9Cl?
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2007
The hydrocarbon used in the production of styrene is
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2007
Which of the following compounds is the best possible anti-knock agent for petrol?
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2007
The presence of nitrogen in air is to slow down
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2007
A supersaturated solution is said to contain
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2007
When temporary hard water is boiled for sometime in a kettle, the inner surface of the kettle becomes coated with a deposit of
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