FUTO Chemistry 2012/2013 Day 2 Past Questions

Practice each question, then open it to see the full details.

Which of the following solids has a network structure?

A.Diamond
B.Iodine
C.Sulphur
D.Graphite
E.Butter

The following gases decolourize bromine water except

A.C₂H₆
B.C₂H₄
C.C₂H₂
D.C₃H₄
E.C₄H₆

The alloy used for metal work and plumbing contains

A.lead and tin
B.iron and carbon
C.copper and tin
D.aluminium and copper
E.aluminium and iron

The compounds of universal indicator solution can best be separated by

A.chromatography
B.filtration
C.evapouration
D.fractional distillation
E.transpiration

The oxidation numbers of phosphorus in PO₄^3- is

A.+1
B.+2
C.+3
D.+5
E.+7

Water can be obtained as the only product during

A.combustion of hydrocarbons
B.neutralization of acid by a base
C.combustion of hydrogen
D.electrolysis of brine
E.boiling water

The oxidation of ammonia in excess air produces

A.N₂O₂
B.N₂O
C.NO₂
D.N₂O₄
E.NO

The gassification of coke is used for the manufacture of

A.producer gas
B.natural gas
C.synthetic gas
D.industrial gas
E.artificial gas

The solubility curve shows the variation of solute concentration with

A.volume
B.temperature
C.vapour
D.pressure
E.weight

The density of a certain gas is 1.98gdm^-3 at STP. What is the molecular mass of the gas? (molar volume of a gas at STP = 22.4dm^-3)

A.44.0g
B.54.0g
C.26.0g
D.31.0g
E.39.0g