2000
Which of the following increases as boiling water changes to steam?
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2000 WAEC SSCE Chemistry Past Questions
2000
An element Z has a combining power of 3. Which of the following formulae is correct of its compounds?
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2000
What is the shape of a molecule of CCI4?
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2000
Which of the following salts is stable to heat?
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2000
Which of the following compounds dissolves in water to give an alkaline solution?
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2000
Which of the following salts is stable to heat?
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2000
If a solution has a pH of 2, it can be concluded that it
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2000
The gas evolved when dilute tetraoxosulphate (VI) acid reacts with sodium hydrogen trioxocarbonate (IV) is
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2000
Which of the following will displace copper from a solution of copper (ll) salt?
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2000
A finely divided from of a metal burns more readily in air than the rod from because the rod has
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2000
What is the effect of using vanadium (V) oxide as catalyst in the reaction represented by the following equation? 2SO2 + O2 ⇌ 2SO3; ∆H = - xKJmol-1
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2000
Chemical equilibrium is attained when
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2000
What type of reaction is involved when wood shavings produce a brown gas with concentrated HNO3?
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2000
Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes?
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2000
0.10 mol dm-3 NaCI conducts electricity better than 0.10 mol dm-3 CH3COOH because the solution of NaCI
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2000
An iron nail placed in a solution copper (ll) tetraoxosulphate (VI) is soon covered with a deposit of copper which of the following equations represents the reactions ?
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2000
What is the value of x in the following equation? Cr2O72- + 14H+ + xe- → 2Cr3+ + 7H2O
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2000
Which of the following needs to be hydrolysed before it shows reducing property?
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2000
Which of the following is correct about both compounds show below? CH3CH 2CH2OH;CH 3CH 2CH(OH)CH3
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2000
C8H18 will undergo the following reactions except
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