Question

Choose the correct unit for the relative density
(a) kg/cm
(b) unitless
(c) kg/cm
(d) kg/m³​

Answer 1

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(b) unitless

Ratio doesn't have unit

Relative density is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material (i.e., water). It is usually measured at room temperature (20 Celcius degrees) and standard atmosphere (101.325kPa). It is unitless

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Answer 2

Explanation:

number (d) is correct answer

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