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

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

A superconductor

A copolymer

A natural polymer

A ceramic composite

None

Which of these is an example of a synthetic polymer?

Protein

Cellulose

Natural rubber

Polyvinyl chloride (PVC)

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

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

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

None

The text identifies a major environmental issue with the disposal of advanced materials in electronic products. What is a primary reason that electronic waste (e-waste) is so harmful?

It is often disposed of through open burning, which releases toxic gases.

It is highly radioactive and requires specialized containment.

It biodegrades too quickly, releasing nutrients that upset ecosystems.

It absorbs a large amount of water, leading to soil dehydration.

None

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

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

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

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

They are more transparent but less conductive.

None

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

Glass fibers and polyester resin (a type of plastic)

Carbon atoms and polymer chains

Steel rods and concrete

Silver chloride and regular glass

None

The development of nanoscience and nanotechnology, which produced materials like carbon nanotubes, involves working at what scale?

The macroscopic scale (greater than 1 millimeter)

The atomic scale (less than 1 nanometer)

The nanoscale (1-100 nanometers)

The microscopic scale (1-100 micrometers)

None

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

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

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

None

Which of the following pairs correctly matches a natural polymer with its corresponding monomer?

Carbohydrate (Starch) and Isoprene

Protein and Amino acid

Protein and Glucose

Natural rubber and Amino acid

None

10.

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

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

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’

None

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