2001
What volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at constant temperature and pressure? The equation for reaction is 2NH3(g) → N2(g) + 3H2(g)
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2001 WAEC SSCE Chemistry Past Questions
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2001
If a metal R forms a compound with the formula R(NO3)2 , the formula of its tetraoxosulphate (IV) is
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2001
Which of the following substances increases in mass when heated in air?
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2001
A substance is said to be hygroscopic if it absorbs
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2001
Which of following acids forms normal salts only?
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2001
The gas given off when NH4 Cl is heated with an alkali is
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2001
Equal amounts of marble chips are reacted separately with 100cm3 of hydrochloric acid of different concentrations. If all the marble chips reacted; which of the following remained the same in each case?
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2001
What will happen if more heat is applied to the following system at equilibrium? X2(g) + 3Y 2(g) ⇌ 2XY3(g); ∆H = -xKJmol-1
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2001
Calculate the mass of sodium hydroxide in 5.00 dm3 of a 0.125 mol dm-3 solution. [NaOH = 40 g mol-1]
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2001
A visible change is observed when a strip of iron is placed in an aqueous solution of
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2001
Which of the following compounds will leave a metal residue when heated?
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2001
CuSO45H2O can be obtained from an aqueous solution of copper (ll) tetraoxosulphate (VI) by
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