UNIZIK Chemistry 2008/2009 Day 2 Past Questions

Which of the following methods can be used to separate a mixture of two miscible liquids with different boiling points?

Pig-iron is brittle because it contains

Which of these metals will not liberate hydrogen from dilute HCl?

Radon is used as a tracer in medical research because it

In linear molecules, the bond angle is

A sodium atom and a sodium ion have the same

An increase in the pressure of a gas results in a decrease in it's

An acid is a substance which in the presence of water produces

Which of the following is a general method of preparing acids?

Which of the following ions will migrate to the cathode during electrolysis?

What quantity of electrons (in mole) is lost when one more of iron (II) ions oxidize to form iron (III) ions?

The common feathers of reactions at the anode is that

Ethene undergoes mainly addition reactions because it is

The position of equipment in a reversible reaction is affected by

The reactions between alkanoic acids and alkanoic in the presence of a mineral acid is known as