Elemental Chemistry Unit 7 Question Preview (ID: 42806)


Chemistry Of Industry. TEACHERS: click here for quick copy question ID numbers.

Soaps and detergents
a) have a water loving head and a grease loving tail.
b) cannot dissolve in water.
c) neither A or B
d) both A and B

Using the condensation method for making a polymer...
a) a molecule of oil is released when two monomers join
b) a molecule of water is released when the bond between two monomers is broken.
c) a molecule of water is released when the two monomers join.
d) a molecule of oil is released when the bond between two monomers is broken.

Which statement is completely true?
a) Most pure metals are hard and strong but are weakened when combined with another metal.
b) Most pure metals are weak and soft but are strengthened when combined with a non-metal.
c) Most pure metals are soft and weak but are hardened when combined with another metal.
d)

Crude oil is heated into hydrocarbons to...
a) separate the different products during condensation.
b) chemically combine the product during condensation.
c) bond with other air molecules to form new forms of fuel.
d)

What are the raw materials for making ammonia?
a) hydrogen and oxygen
b) nitrogen and oxygen
c) nitrogen and hydrogen
d) hydrogen and nitrates

________________ is the catalyst for ammonia production
a) Copper
b) Zinc
c) Magnesium
d) Iron

Dyes are different than pigments because...
a) Dyes coat the surface of a material, pigments bond with the material
b) Pigments coat the surface of a material, dyes bond with the material
c)
d)

Examples of natural fibers are...
a) Cotton, Rayon and Silk
b) Wool, Cotton and Acrylic
c) Polyester, Acrylic and Nylon
d) Cotton, Wool and Silk

Examples of synthetic fibers are...
a) Cotton, Rayon and Silk
b) Wool, Cotton and Acrylic
c) Polyester, Acrylic and Nylon
d) Cotton, Wool and Silk

There are two groups of ceramics, those which...
a) break easily under pressure and those that do not.
b) are molded and then heated and those that are heated and then molded.
c) are made of glass and cement
d) are made bricks and pottery.

Detergents are made from fats, while soaps are not.
a) True
b) False
c)
d)

Every Industrial plant needs access to raw materials, energy and water?
a) True
b) False
c)
d)

Adhesives stick by forming bonds with the objects they are joining together.
a) True
b) False
c)
d)

Smelting is the chemical process of extracting metal from ore.
a) True
b) False
c)
d)

Coke is produced when coal is burned with air.
a) True
b) False
c)
d)

The organic farmer uses no natural or synthetic fertilizers or food supplements.
a) True
b) False
c)
d)

Natural Dyes are made from wood or murex shells.
a) True
b) False
c)
d)

Synthetic dyes are made by adding Neon and Iron to a colorless chemical which comes from distilling petroleum or coal tar.
a) True
b) False
c)
d)

The cosmetic industry does not regularly use emulsifying agents.
a) True
b) False
c)
d)

The extrusion process is critical to forming nylon threads.
a) True
b)
c)
d)

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