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Question (31)

QN0013063

Which natural ingredient pair can be tested for comparing two plant-based colours?

(A) Spinach and beetroot
(B) Plastic and metal
(C) Glass and wood
(D) Ink and paint

Correct Answer: A

Explanation:

Spinach and beetroot are natural colour sources.

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Question (32)

QN0013064

A natural dye prepared from a plant is useful because it is:

(A) Plant-based colouring material
(B) Made from synthetic chemicals only
(C) A type of plastic
(D) A machine product

Correct Answer: A

Explanation:

Plant-based dyes are natural colouring materials.

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Question (33)

QN0013065

If a student uses more turmeric paste on one sheet and less on another, the conclusion about brightness may be:

(A) Incorrect due to unequal conditions
(B) Perfectly accurate
(C) Unrelated to colour
(D) Always the same

Correct Answer: A

Explanation:

Unequal quantities affect the comparison.

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Question (34)

QN0013066

Which observation table entry is most useful in the experiment?

(A) Ingredient name and colour result
(B) Student name only
(C) Date only
(D) Paper seller name

Correct Answer: A

Explanation:

Recording ingredient and result helps analyse the experiment.

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Question (35)

QN0013067

Natural colours are different from artificial dyes because they are obtained from:

(A) Natural sources
(B) Plastic materials
(C) Computer-generated images
(D) Metal powders

Correct Answer: A

Explanation:

Natural colours come from natural materials.

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Question (36)

QN0013068

India’s traditional knowledge of using plant materials for colouring shows a connection between:

(A) Nature and human creativity
(B) Machines and pollution
(C) Waste and chemicals
(D) Factories and plastic

Correct Answer: A

Explanation:

Traditional practices show the use of natural resources creatively.

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Question (37)

QN0013069

A student discovers that two plant extracts give different shades. This shows that:

(A) Natural ingredients have unique properties
(B) All plants give identical colours
(C) Colours cannot be studied
(D) Plants have no pigments

Correct Answer: A

Explanation:

Different plants produce different colour effects.

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Question (38)

QN0013070

The best conclusion from the Natural Colour Experiment is that:

(A) Plants can provide useful colours
(B) Only artificial colours work
(C) Paper cannot be coloured naturally
(D) Experiments do not need observations

Correct Answer: A

Explanation:

Plants can be sources of useful natural colours.

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Question (31)

Which natural ingredient pair can be tested for comparing two plant-based colours?

Explanation:

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Question (32)

A natural dye prepared from a plant is useful because it is:

Explanation:

Link:

Question (33)

If a student uses more turmeric paste on one sheet and less on another, the conclusion about brightness may be:

Explanation:

Link:

Question (34)

Which observation table entry is most useful in the experiment?

Explanation:

Link:

Question (35)

Natural colours are different from artificial dyes because they are obtained from:

Explanation:

Link:

Question (36)

India’s traditional knowledge of using plant materials for colouring shows a connection between:

Explanation:

Link:

Question (37)

A student discovers that two plant extracts give different shades. This shows that:

Explanation:

Link:

Question (38)

The best conclusion from the Natural Colour Experiment is that:

Explanation:

Link:

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