Assertion :Density is expressed as $g {m L}^{- 1}$ whereas specific gravity is dimensionless. Reason: Specific gravity is ratio of the masses of solution and solvent.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Density is mass/volume and expressed as $g m L^{- 1}$ while specific gravity is the ratio of density of a substance compared to the density of fresh water at $4^{o} C (39 F)$ . At this temperature, the density of water is at its greatest value and equal $1$ $g m L^{- 1}$ and it is dimensionless.

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Choose the correct option.

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