Kuiz Sains Tambahan Tingkatan 5 Bab 5 Set 1

SELAMAT DATANG Kuiz Sains Tambahan Tingkatan 5 Bab 5 Set 1

Kimia Bahan (English)

KUIZ INI MENGANDUNGI 10 SOALAN

Nylon, commonly used for ropes, carpets, and clothing, is a synthetic copolymer. What does this imply about its monomer composition?

It is made from repeating units of the natural monomer isoprene.

It is a modified version of the natural polymer, protein.

It is made from a single, complex monomer called ‘nylonene’

It is formed from two different types of monomers, hexanedioic acid and hexamethylene diamine.

None

How do fiber optic cables transmit information, making them advantageous over traditional copper wires?

They vibrate at high frequencies to transmit data acoustically.

They use superconductive materials to send electrical signals with zero loss.

They transmit data as signals of light, allowing for higher speed and capacity

They use magnetic pulses, which are not affected by electrical interference.

None

What is the fundamental difference between a polymer and a copolymer?

A polymer is formed through addition polymerization, while a copolymer is formed through condensation polymerization.

A polymer is made of natural monomers, while a copolymer is made of synthetic monomers.

A polymer is a long-chain molecule, whereas a copolymer is a short-chain molecule.

A polymer consists of a single repeating monomer unit, while a copolymer is formed from more than one type of monomer.

None

Fiberglass is a composite material valued for being strong, lightweight, and corrosion-resistant. What are its two primary components?

Steel rods and concrete

Silver chloride and regular glass

Glass fibers and polyester resin (a type of plastic)

Carbon atoms and polymer chains

None

What property of the synthetic polymer Perspex (Polymethyl methacrylate) makes it suitable for use in aircraft windows and car lights?

It is opaque and absorbs all light.

It is soft and highly elastic

It is lightweight, strong, and transparent.

It is a good electrical conductor.

None

Styrene-butadiene rubber is used to make vehicle tires. Based on its name and the provided text, what type of material is it?

A copolymer

A ceramic composite

A natural polymer

A superconductor

None

Which of these is an example of a synthetic polymer?

Polyvinyl chloride (PVC)

Protein

Cellulose

Natural rubber

None

Photochromic glass, which darkens in sunlight, is created by adding which substances to regular glass?

Styrene and butadiene monomers

Silver chloride (or silver bromide) and copper(II) chloride

Yttrium barium copper oxide

Polyester resin and glass fibers

None

Carbon nanotubes are utilized in advanced water filters. What function do they perform in this application?

They act as a membrane to physically block microorganisms and heavy metals.

They increase the water pressure to speed up the filtration process

They add beneficial carbon minerals to the water.

They chemically neutralize all contaminants in the water.

None

10.

What is the defining characteristic of a superconductor when it is cooled below its critical temperature?

It converts electrical energy into heat energy with 100% efficiency.

It develops extremely high electrical resistance.

It becomes a perfect insulator.

It exhibits zero electrical resistance

None

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