Benzene freezes at `5.50°C`. If the freezing point of `2.48` g of phosphorous in `100` g benzene is `4.48°C,` what wil

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Q 1210391210.     Benzene freezes at `5.50°C`. If the freezing point of `2.48` g of phosphorous in `100` g benzene is `4.48°C,` what will be the atomicity of phosphorus in benzene? (`K_ftext(benzene) = 5.12 `K kg `mol^(–1)`):
A

`4`

B

`8`

C

`3`

D

`1`

HINT

Use formula: Molecular mass of phosphorous =`( 1000 K_f w_text(solute))/(ΔT_f w_text(benzene))`

Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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