
Chemicals for Consumers/Bahan Kimia untuk Pengguna
Authored by Muhammad Zainal
Chemistry
5th Grade
Used 18+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan yang manakah tidak benar tentang sabun dan detergen?
Which of the following statement are incorrect about soap and detergent?
Sabun dan detergen diperbuat daripada minyak sayuran
Soap and detergen produced from vegetable oil
Sabun membentuk kekat dalam air yang mengandungi ion magnesium dan kalsium manakala detergen tidak membentuk kekat dalam air yang sama.
Soap forms scum in water containing magnesium and calcium ions while detergent do not.
Kedua-duanya mempunyai kepala berion larut dalam air dan ekor hidrokarbon larut dalam gris.
Both have ionic head dissolves in water and hydrocarbon tail dissolves in grease.
Sabun mempunyai kepala ion karboksilat manakala detergen mempunyai kepala ion sulfonat.
Soap has ionic head of carboxylate while detergent has ionic head of suphonate.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila sebatian Y dihidrolisiskan natrium hidroksida, sabun gliserol terbentuk. Apakah homolog Y?
When compound Y is hydrolysed by sodium hydroxide, soap and glycerol formed. Which homologous series does Y belong to?
Alkohol
Alcohol
Alkana
Alkane
Asid karboksilik
Carboxylic acid
Ester
Ester
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah nama proses yang digunakan untuk menghasilkan sabun?
What is the name of the process used to produce soap?
Saponifikasi
Saponification
Sulfonifikasi
Sulphonation
Pendehidratan
Dehydration
Penghidrogenan
Hydrogenation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila gris dikelilingi oleh molekul sabun, gris akan terpecahkepada bahagian yang lebih kecil dan termendak dalam air. Apakah fungsj sabun dalam proses ini?
When grease is surrounded by soap molecules, the grease breaks into smaller parts that remain suspended in water.
What is the function of soap in this process?
Pengemulsi
Emulsifier
Agen penghidratan
Hydrating agent
Agen pembasahan
Wetting agent
Agen pengoksidaan
Oxidising agent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah 1 menunjukkan struktur bagi molekul sabun. Antara yang berikut, yang manakah benar tentang struktur are molekul sabun?
Diagram 1 shows the structure of a soap molecule.
Bahagian A ialah bahagian hidrofilik molekul sabun yang larut di dalam air.
Part A is the hydrophilic part of soap molecule that dissolves in water.
Bahagian B ialah bahagian hidrofobik molekul sabun yang larut dalam gris.
Part B is the hydrophobic part of soap molecule that dissolves in grease.
Dalam air berasid, ion karboksilat bertindak balas dengan ion hidrogen yang menjadikan saiz molekulnya lebih besar dan tidak larut.
In acidic water, the carboxylate ion reacts with hydrogen ion which make its molecular size larger and insoluble.
Dalam air liat, ion karboksilat bertindak balas dengan ion magnesium atau ion kalsium untuk membentuk garam terlarut.
In hard water, the carboxylate ion reacts with magnesium ion or calcium ion to form soluble salt.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara ion yang berikut, yang manakah mempengaruhi fungsi sabun dalam air liat?
Which of the following ions is present in the hard water that affects the function of the soap?
Ion barium
Barium ion
Ion kalsium
Calcium ion
Ion natrium
Sodium ion
Ion kalium
Potassium ion
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara bahan tambah detergen yang berikut, yang manakah berfungsi untuk mengekalkan kekeringan detergen?
Which of the following additives is added to the detergent to maintain its dryness?
Natrium sulfat
Sodium sulphate
Enzim biologi
Biological enzyme
Natrium tripolifosfat
Sodium tripolyphosphate
Natrium perborat
Sodium perborate
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