Which of the following are physical properties?
i. Melting point
ii. Hardness
iii. Density
iv. Fluidity
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A.
i and ii only
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B.
i, ii and iii only
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C.
i, iii and iv only
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D.
i, ii, iii and iv
Correct Answer:
D. i, ii, iii and iv
Explanation:
Physical properties are characteristics of a substance that can be observed or measured without changing its chemical identity. Melting point, hardness, density, and fluidity are all considered physical properties because they describe the state, structural integrity, mass-to-volume ratio, and flow characteristics of a material, respectively, without requiring a chemical reaction to be identified. Consequently, all four listed attributes—i, ii, iii, and iv—fall under the category of physical properties.
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