Question

Does anyone have ANCQ( AUSTRALIAN NATIONAL CHEMISTRY QUIZ ) question paper or practice sheets. Please give me thank you. If you want i can give you my email, then you can send attachment there. Give me any practice you have of ANCQ.

Answer 1

.Copper, gold and tin were among the first metals to be used by human societies. The use of iron occurred  much later, even though iron is much more abundant in earth's crust than copper, gold or tin. The most  likely reason for this is the fact, compared with copper, gold, and tin,

A. iron is harder.

B. iron is less shiny, and was therefore less attractive.

C. iron, because its density, is only found in deep Earth Crust.

D. Iron is more reactive, and so is more difficult to obtain from its ores.


2. The law of Constant Composition states that all pure samples of same chemical compound contain the     same elements combined together in fixed proportions by mass. The compound water, H2O, contains the elements hydrogen and oxygen combined together in the the ration of 1 part of hydrogen for every 8 parts   of oxygen by mass. The mass of hydrogen in 72g of water is

A. 8g

B. 9g

C. 63g

D. 64g


3. An old name for hydrochloric acid, HCL, is muriatic acid. This name is still used by some non-chemists.  A gardener, needing to add some fertilizer containing fertilizer to his soil, bought a bag of fertilizer labelled     'Muriate of Potash'. What would be the chemical name of muriate of potash?
A. Potassium.
B. Potassium Muriate.
C. Potassium Chloride.
D. Potassium Acid.

4. A kilderkin is an old unit of volume equal to half a barrel or two firkins. It was used as a standard size for brewery casks. A barrel was equal to 36 gallons, and a hogshead was 1.5 barrels. A hogshead was approximately 250 litres. Approximately how many litres were in a firkin?
A. 126
B. 84
C. 42
D. 21