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 natural polymer

A copolymer

A superconductor

A ceramic composite

None

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

Protein and Amino acid

Carbohydrate (Starch) and Isoprene

Natural rubber and Amino acid

Protein and Glucose

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 chemically neutralize all contaminants in 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

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 made from repeating units of the natural monomer isoprene.

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

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

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 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.

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

None

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 exhibits zero electrical resistance

It becomes a perfect insulator.

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 is highly radioactive and requires specialized containment.

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

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 more transparent but less conductive.

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

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

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

None

10.

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

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

Yttrium barium copper oxide

Polyester resin and glass fibers

Styrene and butadiene monomers

None

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