Solutions question bank (Chemistry)

Which of the following statements are not correct?
A. For water, magnitude of $K_b$ is more than the magnitude of $K_f$.
B. The elevation in boiling point of water when a non-volatile solute is added to it is larger in magnitude than its depression in freezing point.
C. Osmotic pressure measurement is preferred over any other colligative property to determine molar mass of proteins and polymers.
D. The dimerised form of benzoic acid in benzene is $C_6H_5-\underset{O}{\overset{O}{\|}}C-OH \cdots\cdots O=\underset{OH}{\overset{|}{C}}-C_6H_5$
Choose the correct answer from the options given below:

Given below are two statements:
Given: Molar mass of C, H, O, Cl are $12, 1, 16$ and $35.5$ g mol$^{-1}$, respectively.
Statement I: In $30\%$ (w/w) solution of methanol in CCl$_4$ (at T K), the mole fraction of CCl$_4$ is equal to $0.33$.
Statement II: Mixture of methanol and CCl$_4$ shows positive deviation from Raoult's law.
In the light of the above statements, choose the correct answer from the options given below: