Q. Assertion : One molar aqueous solution is more concentrated than that of molal aqueous solution.
Reason : Molarity is a function of temperature as volume depends on temperature.

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Solution:

molar solution has mole of solute per litre of solution or per of solution.
Now, density of water

Hence, mole is present in less than of solvent
of solution = solute and solvent]
Whereas molal solution has mole of solute in of solvent.