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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U”) RED ZONE [RZ]
49 What types of glass is formed when sodium carbonate is heated with silicon dioxide?
Apakah jenis kaca yang terbentuk apabila natrium karbonat yang dipanaskan dengan
silikon dioksida?
A Fused glass C Lead crystal glass
Kaca silika terlakur Kaca plumbum
B Borosilicate glass D Soda lime glass
Kaca borosilikat Kaca soda kapur
50 Diagram shows the stages I, II, III and IV in the Contact Process during the preparation
of sulphuric acid.
Rajah menunjukkan peringkat I, II, III dan IV bagi penyediaan asid sulfurik melalui
proses Sentuh.
S I SO 2 II SO 3 III H 2S 2O 7 IV H 2SO 4
Which of the following chemicals is used at each stage?
Antara bahan kimia berikut, yang manakah digunakan pada peringkat itu?
I II III IV
A O 2 O 2 H 2O H 2SO 4
B O 2 O 2 H 2SO 4 H 2O
C O 2 H 2O O 2 H 2SO 4
D H 2O O 2 H 2SO 4 O 2
Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 29
