Chapter 5: Consumer & Industrial Chemistry
Quiz by NOOR FA'ASILLA BINTI JASNI Moe
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- Q1
Which of the following is TRUE about the conversion of unsaturated fats to saturated fats?
Physical state changes from liquid to solid
The boiling point of the oil decreases
Relative molecular mass of the oil molecule decreases
Intermolecular forces become weaker
45s - Q2
Which of the following is NOT the benefit of oils and fats?
It consists of a high amount of vitamins A, D, E and K
It helps to prevent heart attack
To produce biofuels
To produce soaps and detergents
30s - Q3
Diagram shows the reaction to produce soap. What is the substance Y?
Ester
Stearic acid
Glycerol
Fatty acid
30s - Q4
Diagram shows the structural formula of a soap. What are the main raw materials required to prepare this soap?
Oil and sodium hydroxide
Fat and sodium chloride
Glycerol and sodium chloride
Sodium chloride and sodium hydroxide
30s - Q5
Which of the following is TRUE about hard water?
Water that contains calcium ion, Ca 2+ and bromide ion, Br -
Detergents anion combines with ions in hard water and forms insoluble salts
Detergents are ineffective as cleansing agent in hard water
Detergents do not form scum in hard water
30s - Q6
Diagram shows a pack of strawberry jam. What is the function of pectin in the jam?
as dyes
as antioxidant
as stabiliser
as preservative
30s - Q7
Without substance P, fatty and oily foods will become rancid faster. What is substance P?
antioxidant
flavouring
emulsifier
thicker
30s - Q8
Diagram shows a glass of orange juice. Which substance will enhance the flavour and smell of the orange juice?
ascorbic acid
tocopherol
octyl ethanoate
sulphur dioxide
30s
