1995 WAEC SSCE Chemistry Past Questions

1995

A positive brown ring test indicates the presence of

1995

The most suitable method for preparing lead (ll) chloride is by

1995

Which of the following species is always present in acidified water?

1995

A WEAK ACID IS ONE WHICH

1995

What is the percentage by mass of copper in copper in copper (l) oxide (CU2O)? [O = 16; CU =64]

1995

What mass of copper will be deposited by the liberation of Cu2+ when 0.1F of electricity flows through an aqueous solution of a copper (ll) salt? [Cu = 64]

1995

Sodium chloride cannot conduct electricity in the solid state because it

1995

Alums are classified as

1995

Consider the reaction represented by the equation below: XO + YO → X + YO2 In the reaction, YO acts as

1995

The following can be obtained directly from the destructive distillation of coal except

1995

Which of the following is hydrocarbons is unsaturated?

1995

The following statements about graphite are correct except that it

1995

H3O+(aq) + OH-(aq) → 2H2O(l). The heat change accompanying the process represented by the equation above is the heat of

1995

Which of the following is not correct of the reaction represented by the equation below? 2C(s) + O2(g) → 2CO(g); ∆H = - xKJ

1995

Which of the following is an alloy of mercury?

1995

The following alkanols will yield alkanoic acids on reacting with excess acidified K2Cr2O7 except

1995

In which of the following processes are larger molecules broken down into smaller molecules?

1995

The gas produced when a mixture of sodium propanoate and soda lime is heated is

1995

Fructose and glucose are classified as carbohydrates because they

1995

What is the amount (in mole) of hydrogen gas that would be produced if 0.6 mole of hydrochloric acid reacted with excess zinc according to the following equation? Zn(s) + 2HCI(aq) → ZnCI2(aq) + H2(g)

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