C5: Consumer and Industrial chemistry (Part 1)

Oil and fats are organic compounds made up of __________, __________ and __________.

Animal fats are saturated fats because they do not contain ____________________ in their hydrocarbon chains.

Plants are __________ fats because they have carbon-carbon double bond in their hydrocarbon chains.

__________ reaction converts unsaturated fats to saturated fats in the margarine manufacturing process.

Which of the following is TRUE about fat?

• Fats and oils are organic compounds made up of carbon, hydrogen and oxygen

• Fats are unsaturated fat whereas oils are saturated fat

• Unsaturated fat is solid at room condition whereas saturated fat is a liquid at room condition

• Unsaturated fats contain one or more carbon-carbon double bond

Margarine, butter and ghee are examples of __________.

• fat

• protein

• hydrocarbon

• polymer

Which of the following is the functional group for fat?

• carbon-carbon double bond

• hydroxyl group

• carboxylate group

During saponification, sodium chloride powder is added into the mixture solution. What is the purpose of adding sodium chloride in the mixture solution?

• to produce a softer soap

• to soften the hard water

• to increase the rate of reaction

• to reduce the solubility of soap

Which cation forms white precipitate when added into a soap solution?

• Ca²⁺

• Zn²⁺

• NH₄⁺

• Ag⁺