Everyday Science · Everyday & Industrial Chemistry · page 3 of 21

Household MCQs with Answers

Includes 23 past paper MCQs (marked).

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Household, Food & Material Chemistry MCQs (21–30)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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21.
Fermented food can be obtained from milk, fruits, vegetables, legumes, and meat. Which one of the following fermented food is obtained from meat?
Correct Answer: C. Sausage, pepperoni, salami
One-liner
Fermented meat products include sausage, pepperoni, and salami, which are produced through lactic acid bacterial fermentation of meat.
22.
Which of the following esters shows the flavour of orange?
Correct Answer: C. Octyl acetate
One-liner
Octyl acetate is the ester responsible for the characteristic flavour and fragrance of oranges.
23.
The most commonly used bleaching agent is ?
Correct Answer: A. Chlorine
One-liner
The most commonly used bleaching agent is Chlorine.
24.
Past Paper MCQ
Polythene is formed when polymers of ethene combine together. Polythene is classified as which type of plastic?
Correct Answer: A. Thermoplastic
One-liner
Polythene (polyethylene) is classified as a thermoplastic, meaning it softens on heating and hardens on cooling repeatedly.
25.
Fats are solids at ?
Correct Answer: A. Ordinary room temperature
One-liner
Fats are solids at ordinary room temperature.
26.
Which of the following products can be made using phosphorus?
Correct Answer: D. Detergents
One-liner
Phosphorus is used in the manufacture of detergents, particularly in the form of phosphates that act as water softeners and cleaning agents.
27.
_ is a polymer compound.
Correct Answer: A. PVC
One-liner
PVC (Polyvinyl Chloride) is a polymer compound.
28.
Which form of phosphorus is used in the manufacture of safety matches?
Correct Answer: C. Red phosphorus
One-liner
Red phosphorus is used in the manufacture of safety matches.
29.
A mixture of potassium and calcium silicates forms _?
Correct Answer: B. Hard glass
One-liner
A mixture of potassium and calcium silicates forms hard glass.
30.
Lime is used for ?
Correct Answer: D. All of these
One-liner
Lime (calcium oxide/hydroxide) is used for all of these — softening hard water, whitewashing, and making glass.

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Household MCQs with Answers

Household, Food & Material Chemistry MCQs (21–30)

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