In the Haber process for the manufacture of ammonia, finely divided iron is used as
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1984
3Cl2 + 2NH3 \(\to\) N2 + 6HCl. In the above reaction, ammonia acts as
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1984
An example of a neutral oxide is
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1984
If the cost of electricity required to deposit 1 g of magnesium is ₦5.00, how much would it cost to deposit 10g of aluminium?
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1984
Which of the following statements is NOT correct about all four of the acids: HBr, HNO3, H 2CO3 and H2SO4? They
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1984
Which of the following statements is INCORRECT?
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1984
Alkaline hydrolysis of naturally occurring fats and oils yields
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1984
When the kerosene fraction from petrol is heated at high temperature, a lower boiling liquid is obtained. This process is known as
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1984
If an excess of a liquid hydrocarbon is poured into a jar of chlorine, and the sealed jar is then exposed for several hours to bring sunlight, all the chlorine gas is consumed. The hydrocarbon is said to have undergone
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1984
Alkanes
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1984
Sodium hydroxide (NaOH) pellets are
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1984
Water is said to be 'hard' if it
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1984
Nitrogen can best be obtained from a mixture over oxygen and nitrogen by passing the mixture over
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1984
At S. T. P how many litres of hydrogen can be obtained from the reaction of 500 cm3 of 0.5 M H 2SO 4 with excess zinc metal?(Gram molecular volume of H2 = 22. 4 dm 3)
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1984
An aqueous solution of a metal salt, M, gives a white precipitate with NaOH which dissolves in excess NaOH. With aqueous ammonia, the solution of M also gives a white precipitate which dissolves in excess ammonia. Theref…
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1984
Which of the following electrodes is used in electrolysis of bauxite (Al2O3) in molten cryolite?
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1984
A piece of sea shell, when dropped into a dilute solution of hydrochloric acid, produces a colourless, odourless gas which turns clear limewater milky. The sea shell contains
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1984
The function of conc. H2SO4 in the esterification of ethanoic acid with ethanol is to
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1984
Use the diagram above to answer this question.Which of the following represents a carboxylic acid?