Assertion: One molar aqueous solution is more concentrated than that of 1 molal aqueous solution .
Reason : Molarity is a function of temperature as volume depends on temperature.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false

Answer

B

Explanation

1 molar solution has 1 mole of solute per litre of solution or per `1000 cm^3` of solution.
Now , density of water = 1g/cc
`therefore 1000 cm^3`=1000g
Hence, 1 mole is present in less than 1000 g of solvent .