2003 WAEC SSCE Chemistry Past Questions

2003

A reducing agent is expected to

2003

Which of the following statements about an exothermic reaction is correct?

2003

Sea shells contain mainly CaCO 3. Calcium oxide can be prepared from sea shells by

2003

Which of the following processes involves neutralization?

2003

The pH of 0.50 mol dm-3 solutions of HCI, H2SO4 and CH3COOH were measured. which of the following statements about the values obtained is correct?

2003

Determine the amount of electrons needed to deposit 6.4g of copper during the electrolysis of copper (ll) tetraoxosulphate (IV) solution [Cu = 64]

2003

Which of the following statements is/are correct about tin plating? l The electrolyte must be a soluble salt of tin ll. the objective to be plated is made the cathode lll. The anode is made of tin lV. The negative electr…

2003

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V>W>X>Y>Z.Which of the metals is most likely extracted by the electrolysis of its fused chloride?

2003

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V>W>X>Y>Z.Which of the metals cannot displace Y from an aqueous solution of its salt?

2003

Consider the electrochemical cell represented below Zn(s)/Zn2+(aq)//Cu2+(aq)/Cu(s). Which of the following equations describes the reaction occurring in the cell?

2003

Wine containing 8% to 17% ethanol can be converted to gin containing about 40% ethanol by

2003

A given fuel has an octane number of 100. This means that

2003

Which of the following compounds has the same empirical formula as benzene?

2003

The equation for the reaction at the anode during the electrolysis of concentrated sodium chloride solution is

2003

A given fuel has an octane number of 100. This means that

2003

When excess ethene is shaken with acidified KMnO4 solution, the product obtained is

2003

What process does the following equation represent ? (C 6H 10O 5) + nH2O → nC6H 12O?6

2003

The reaction of vegetable oil with a solution of wood ash is

2003

What is the organic product of the reaction of C2H 5OH with excess acidified K 2Cr 2O7(aq)?

2003

Which of the following substances could be responsible for the banana taste of a food flavour?

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2003 WAEC SSCE Chemistry Past Questions

A reducing agent is expected to

Which of the following statements about an exothermic reaction is correct?

Sea shells contain mainly CaCO 3. Calcium oxide can be prepared from sea shells by

Which of the following processes involves neutralization?

The pH of 0.50 mol dm-3 solutions of HCI, H2SO4 and CH3COOH were measured. which of the following statements about the values obtained is correct?

Determine the amount of electrons needed to deposit 6.4g of copper during the electrolysis of copper (ll) tetraoxosulphate (IV) solution [Cu = 64]

Which of the following statements is/are correct about tin plating? l The electrolyte must be a soluble salt of tin ll. the objective to be plated is made the cathode lll. The anode is made of tin lV. The negative electr…

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V&gt;W&gt;X&gt;Y&gt;Z.Which of the metals is most likely extracted by the electrolysis of its fused chloride?

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V&gt;W&gt;X&gt;Y&gt;Z.Which of the metals cannot displace Y from an aqueous solution of its salt?

Consider the electrochemical cell represented below Zn(s)/Zn2+(aq)//Cu2+(aq)/Cu(s). Which of the following equations describes the reaction occurring in the cell?

Wine containing 8% to 17% ethanol can be converted to gin containing about 40% ethanol by

A given fuel has an octane number of 100. This means that

Which of the following compounds has the same empirical formula as benzene?

The equation for the reaction at the anode during the electrolysis of concentrated sodium chloride solution is

A given fuel has an octane number of 100. This means that

When excess ethene is shaken with acidified KMnO4 solution, the product obtained is

What process does the following equation represent ? (C 6H 10O 5) + nH2O → nC6H 12O?6

The reaction of vegetable oil with a solution of wood ash is

What is the organic product of the reaction of C2H 5OH with excess acidified K 2Cr 2O7(aq)?

Which of the following substances could be responsible for the banana taste of a food flavour?

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V>W>X>Y>Z.Which of the metals is most likely extracted by the electrolysis of its fused chloride?

Five metals represented by the letters V to Z are arranged in order of their reactivity as shown . V>W>X>Y>Z.Which of the metals cannot displace Y from an aqueous solution of its salt?