IMSU Chemistry 2012/2013 Past Questions

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

The best description for water molecule.

A.a universal solvent
B.inorganic solvent
C.hydrophilic solvent
D.organic solvent

A.an inorganic molecule
B.organic molecule
C.organic base
D.inorganic base

The atmospheric molecule that protects the earth from direct heat of the sun

A.ozone
B.carbon
C.nitrogen
D.None of the above.

A compound which can react both as an acid and a base is said to be

A.hydrophilic
B.Amphoprotic
C.amphoteric
D.amphipatic

One of these compounds reacts both as an acid and as a base

A.Hexane
B.Acetone
C.water
D.xylene

______ Can be used to manufacture fertilizer

A.Sulphur
B.Phosphate
C.Manure
D.Nickel

Calculate the molar mass of CUSO₄.5H₂O

A.250
B.36
C.34
D.98

What is the percentage by mass of copper in copper (I) oxide? Given that O = 16, Copper (I) oxide = Cu₂O

A.88.9%
B.80.0%
C.66.7%
D.20.0%

A solution of pH 7 is

A.Acidic
B.neutral
C.basic
D.saturated

The existence of two or more forms of the same element in the same physical state is

A.Allotropy
B.Resonance
C.hybridization
D.Isotopy