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

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

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

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

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 natural polymer

A copolymer

A ceramic composite

A superconductor

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

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

None

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

Silver chloride and regular glass

Steel rods and concrete

Glass fibers and polyester resin (a type of plastic)

Carbon atoms and polymer chains

None

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

They add beneficial carbon minerals to the water.

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

They increase the water pressure to speed up the filtration process

They chemically neutralize all contaminants in the water.

None

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

Polyester resin and glass fibers

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

Yttrium barium copper oxide

Styrene and butadiene monomers

None

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

It is lightweight, strong, and transparent.

It is soft and highly elastic

It is a good electrical conductor.

It is opaque and absorbs all light.

None

Why are carbon nanotubes considered a superior material for touch screen devices compared to the traditionally used tin oxide?

They are able to store more electrical charge, increasing battery life.

They have better mechanical properties and sensitivity at a lower cost.

They are heavier and more rigid, making the screen less likely to break

They are more transparent but less conductive.

None

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

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.

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.

None

10.

Which of these is an example of a synthetic polymer?

Natural rubber

Cellulose

Polyvinyl chloride (PVC)

Protein

None

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