UNIZIK Chemistry 2008/2009 Day 1 Past Questions

The component of universal indicator solution can best be separated by

The number of replaceable hydrogen atoms in one molecules of an acid indicates it's

A measure of the degree of disorder in a chemical system is known as the

In any chemical reaction, the total mass of the products is always equal to that of the reactants. This is statement of the law of

Which of the following is not a property of magnesium oxide?

Calcium is usually extracted by the electrolysis of it's

When naphthalene on heating changes from the solid state directly to the gas sate it undergoes

When sodium atom forms the ion Na⁺

Which of the following properties is a characteristics of the halogens?

A transition metal would be expected to

Which of the following properties of atoms generally increase down a group in the periodic table?

Which of the following compounds has hydrogen bonds between its molecules?

What product is formed at the cathode during the electrolysis of concentrated sodium chloride solution using carbon electrodes?

Glucose reduces Fehling's solution on warming to

Which of the following activities is not a source of air pollution?