1991 - WAEC Chemistry Past Questions and Answers - page 3
In the redox reaction represented by the following equation: Cu2+
When starch undergoes complete enzyme-catalyzed hydrolysis, the resulting product is
Which of the reactions represented by the following equations will take place at room temperature?
Which of the following is not a direct petroleum product?
How many principal electronic shells has an atom whose electronic configuration is shown below? 1s22s22p63s1
Which of the following properties is not characteristic of electrovalent compounds?
Compounds that have the same molecular formula but different structures are said to be
In which of the following crystals are the particles held by van der Waal's forces only?
A current of 4.0 amperes was passed through copper (ll) tetraoxosulphate (IV) solution for one hour using copper electrodes. What was the mass of copper deposited? (Cu = 64, 1F = 96500 C)
When a crystal was added to its solution, it did not dissolve and the solution remained unchanged, showing that the solution was