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WorksheetsSc-F3 (4.3)
Total questions: 10
Worksheet time: 5mins
State the main factor that determine the method of metal extraction from its ore?
Nyatakan faktor utama yang menentukan kaedah pengekstrakan sesuatu logam dari bijihnya?
depends on the position of the metal in the reactivity series
bergantung kepada kedudukan logam itu dalam siri kereaktifan
depends on the physical characteristics of the metal ores
bergantung kepada sifat fizikal bijih logam
depends on the location where the metal ores are found
bergantung kepada lokasi di mana bijih logam dijumpai
depends on the source of technology
bergantung kepada sumber teknologi
Which of the following mineral can be extracted using reduction method by carbon?
Manakah mineral berikut boleh diekstrak menggunakan kaedah penurunan oleh karbon
Cassiterite
Kasiterit
Bauxite
Bauksit
Limestone
Batu kapur
Platinum
Platinum
Why carbon is widely used in extraction of metal?
Mengapakah karbon digunakan dengan meluas dalam pengekstrakan logam?
I - Good reducing agent Agen penurunan yang bagus
II - easily available senang dijumpai
III - cheap murah
I, II and III
I and II
I and III
II and III
State three main substances that are inserted in blast furnace?
Nyatakan tiga bahan utama yang dimasukkan ke dalam relau bagas?
Iron ore, limestone and coke
Bijih besi, batu kapur dan arang kok
Iron, slag and oxygen
Besi, slanga dan oksigen
Iron ore, slag and coke
Bijih besi, slanga dan arang kok
Iron ore, sand and coke
Bijih besi, pasir dan arang kok
Which of the following word equation represent when coke reacts with oxygen?
Manakah yang persamaan perkataan menunjukkan apabila arang kok bertindak balas dengan oksigen?
Carbon + Oxygen --> Carbon dioxide
Karbon + oksigen --> Karbon Dioksida
Carbon + Oxygen --> Carbon monooxide
Karbon + oksigen --> Karbon monoksida
Carbon dioxide + Carbon --> Carbon monoxide
Karbon dioksida + karbon --> Karbon monoksida
Carbon dioxide + Oxygen --> Carbon monoxide
Karbon dioksida + Oksigen --> Karbon monoksida
Which of the following reducing agents can be found in blast furnace?
Manakah agen penurunan berikut boleh dijumpai di dalam relau bagas?
I - carbon karbon
II - carbon dioxide karbon dioksida
II - carbon monoxide karbon monoksida
I and III
I only
I and II
I, II and III
The limestone (calcium carbonate) decomposes to produce substance X and carbon dioxide by heat. What is X?
Batu kapur (kalsium carbonate) terurai menjadi bahan X dan karbon dioksida oleh haba. Apakah X?
Calcium oxide
Kalsium oksida
Calsium silicate
Kalsium silikat
Calcium carbonate
Kalsium karbonat
Calsium sulfide
Kalsium sulfida
Calcium oxide + Impurity X --> Calcium silicate
Kalsium oksida + Bendasing X --> Kalsium silikat
Calcium oxide reacts with impurities such substance X to produce slag (calcium silicate). What is X?
Kalsium oksida bertindak balas dengan bahan X untuk menghasilkan sanga (kalsium silikat). Apakah X?
Silicon dioxide
Silikon dioksida
Silicon carbonate
Silicon karbonat
Silikon sulfide
Silikon sulfida
Silicon
Silikon
Which of the following diagram is not the solution to cope with the negative effects of illegal mining activity?
Manakah rajah yang berikut bukan merupakan langkah penyelesaian mengatasi kesan buruk aktiviti perlombongan haram?
The diagram shows a negative effect of illegal mining of mineral X in Pahang, Malaysia a few years ago. What is mineral X?
Rajah menunjukkan kesan negatif perlomobongan haram mineral X di Pahang, Malaysia beberapa tahun dahulu. Apakah mineral X?
Bauxite
Bauksit
Galena
Galena
Cassiterite
Kasiterit
Hematite
Hematiti
