Which colours are used in the colour printing?

D. Cyan, Magenta, Yellow, Black

Everyday Science · Everyday & Industrial Chemistry · page 9 of 21

Household MCQs with Answers

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Household, Food & Material Chemistry MCQs (81–90)

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

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81.
Which monosaccharide will form a gluco pyranose ring in solution?
Correct Answer: C. Glucose
One-liner
Glucose forms a glucopyranose ring in solution, which is a six-membered pyranose ring structure.
82.
Glass is a _?
Correct Answer: D. Super cooled liquid
One-liner
Glass is a super cooled liquid because it is an amorphous solid that flows very slowly over time.
83.
Which type of fire extinguisher is used for petroleum fire?
Correct Answer: B. Foam extinguisher
One-liner
A foam extinguisher is used for petroleum fires because it forms a blanket over the burning liquid, cutting off the oxygen supply and preventing re-ignition.
84.
Which colours are used in the colour printing?
Correct Answer: D. Cyan, Magenta, Yellow, Black
One-liner
Colour printing uses Cyan, Magenta, Yellow, and Black (CMYK) as its four primary ink colours.
85.
The percentage of N and P in fish manure is ?
Correct Answer: B. 5-7%
One-liner
The percentage of nitrogen (N) and phosphorus (P) in fish manure is 5-7%.
86.
Which one is a biodegradable polymer?
Correct Answer: D. PHRV
One-liner
PHRV (Polyhydroxybutyrate-co-hydroxyvalerate) is a biodegradable polymer produced by bacteria.
87.
The removal of suspended particles from the water takes place by the process of _?
Correct Answer: C. Both A and B
One-liner
The removal of suspended particles from water takes place by both sedimentation and filtration.
88.
A method of removing suspended sand particles and insoluble physical impurities from water is known as?
Correct Answer: D. Filtration
One-liner
The method of removing suspended sand particles and insoluble physical impurities from water is known as Filtration.
89.
Which fish is used in China for soap making?
Correct Answer: C. Shark
One-liner
In China, shark is used for making soap due to the high oil content in its liver.
90.
Past Paper MCQ
Which material can be recycled multiple times without losing its quality?
Correct Answer: D. Aluminum
One-liner
Aluminum can be recycled indefinitely without any loss in quality, making it one of the most sustainable materials.

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Household MCQs with Answers

Household, Food & Material Chemistry MCQs (81–90)

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