Synthetic Polymers
Muhtasari
Plastics are everywhere - packaging, clothing, electronics, medical equipment. Almost all of them are synthetic polymers, giant molecules built by joining thousands of small monomer molecules together.
In this lesson you will learn what monomers and polymers are, how addition polymerisation works, how to draw repeat units from monomers and vice versa, and the environmental problems that come from disposing of these incredibly durable materials.
Malengo
- Know that an addition polymer is formed by joining up many small molecules called monomers
- Understand how to draw the repeat unit of an addition polymer
- Understand how to deduce the structure of a monomer from the repeat unit of an addition polymer and vice versa
- Explain problems in the disposal of addition polymers, including their inertness and the production of toxic gases when burned
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Maelezo ya Somo
Dokezo Kamili la Somo Linapatikana kwenye Programu ya Green Bridge
Pata programu ya Green Bridge CBT kwenye simu au kompyuta yako kwa maktaba kamili ya IGCSE: mitihani ya miaka iliyopita, miongozo ya usahihishaji, ramani za mawazo, kadi za marudio na masomo ya sauti.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Synthetic Polymers. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Addition polymerisation requires a monomer with: A) A single bond B) A double bond C) A triple bond D) No carbon Answer: B
- What happens to the C=C bond during addition polymerisation? A) It becomes a triple bond B) It stays as a double bond C) It opens to a single bond D) It breaks completely Answer: C
- The monomer of polyethene is: A) Methane B) Ethane C) Ethene D) Propene Answer: C
- A major problem with disposing of addition polymers is: A) They dissolve in water B) They are biodegradable C) They are non-biodegradable D) They react with air Answer: C
- Burning PVC can produce: A) Oxygen B) Nitrogen C) Hydrogen chloride D) Sodium chloride Answer: C
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Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Synthetic Polymers? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
