Q.52. Given below are two statements : Given : Molar mass of C, H, O, Cl are 12, 1, 16 and 35.5 g mo

Q: What is the correct answer for JEE Main Chemistry Q52?

The correct answer is A. Sol. (i) Let wt of solution = 100 g wt of methanol = 30 g wt of CCl₄ = 100 – 30 = 70 g mole fraction of CCl₄ = $$\frac{n_{CCl_4}}{n_{CCl_4} + n_{CH_3OH}}$$ = $$\frac{70/154}{70/154 + 30/32}$$ = 0.3267 ≈ 0.33 (ii) CCl₄ & methanol is mixture of positive deviation from Raoult's law. So, statement (I) & statement (II) are correct.

Q: Q.52. 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 CCl₄ (at T K), the mole…

The correct answer is A. Sol. (i) Let wt of solution = 100 g wt of methanol = 30 g wt of CCl₄ = 100 – 30 = 70 g mole fraction of CCl₄ = $$\frac{n_{CCl_4}}{n_{CCl_4} + n_{CH_3OH}}$$ = $$\frac{70/154}{70/154 + 30/32}$$ = 0.3267 ≈ 0.33 (ii) CCl₄ & methanol is mixture of positive deviation from Raoult's law. So, statement (I) & statement (II) are correct.

Q: What are the options for this JEE Main Chemistry question?

A. Both Statement I and Statement II are true · B. Both Statement I and Statement II are false · C. Statement I is true but Statement II are false · D. Statement I is false but Statement II are true

Question

Q.52. 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 CCl₄ (at T K), the mole fraction of CCl₄ is equal to 0.33. Statement II : Mixture of methanol and CCl₄ shows positive deviation deviation from Raoult's law. In the light of the above statements, choose the correct answer from the option given below :

FirstInTest · Accepted Answer

Sol. (i) Let wt of solution = 100 g wt of methanol = 30 g wt of CCl₄ = 100 – 30 = 70 g mole fraction of CCl₄ = $$\frac{n_{CCl_4}}{n_{CCl_4} + n_{CH_3OH}}$$ = $$\frac{70/154}{70/154 + 30/32}$$ = 0.3267 ≈ 0.33 (ii) CCl₄ & methanol is mixture of positive deviation from Raoult's law. So, statement (I) & statement (II) are correct.

Answer

Both Statement I and Statement II are true

Answer

Both Statement I and Statement II are false

Answer

Statement I is true but Statement II are false

Answer

Statement I is false but Statement II are true

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