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

Which of these is an example of a synthetic polymer?

Natural rubber

Protein

Polyvinyl chloride (PVC)

Cellulose

None

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

The nanoscale (1-100 nanometers)

The macroscopic scale (greater than 1 millimeter)

The microscopic scale (1-100 micrometers)

The atomic scale (less than 1 nanometer)

None

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

Protein and Amino acid

Natural rubber and Amino acid

Protein and Glucose

Carbohydrate (Starch) and Isoprene

None

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

They chemically neutralize all contaminants in the water.

They add beneficial carbon minerals to the water.

They increase the water pressure to speed up the filtration process

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

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 natural polymer

A superconductor

A ceramic composite

None

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 a single, complex monomer called ‘nylonene’

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

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

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 biodegrades too quickly, releasing nutrients that upset ecosystems.

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

It is highly radioactive and requires specialized containment.

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

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

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

Carbon atoms and polymer chains

Glass fibers and polyester resin (a type of plastic)

Steel rods and concrete

Silver chloride and regular glass

None

10.

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

It becomes a perfect insulator.

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

It develops extremely high electrical resistance.

It exhibits zero electrical resistance

None

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