Solutions: JEE Main 2021 Chemistry question

1.22 g of an organic acid is separately dissolved in 100 g of benzene (K_b = 2.6 K kg mol^$-$1) and 100 g of acetone (K_b = 1.7 K kg mol^$-$1). The acid is known to dimerize in benzene but remain as a monomer in acetone. The boiling point of the solution in acetone increases by 0.17$^\circ$C. The increase in boiling point of solution in benzene in $^\circ$C is x $\times$ 10^$-$2. The value of x is ______________. (Nearest integer) [Atomic mass : C = 12.0, H = 1.0, O =16.0]