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NEET UG CHEMISTRY MCQ: SOLUTIONS

1 Medium

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Application +4 | -1

What is molecular weight of a substance whose 7.0% by mass solution in water freezes at

--{0.93^0}C

.

{K_f}

for water is

1.86\mathrm{ }K\mathrm{ }kg\mathrm{ }mo{l^{ - 1}}

View answer and explanation

Correct option: B

150\,.5\,g\,mo{l^{ - 1}}

Option B (

150.5\,.5\,g\,mo{l^{ - 1}}

) is correct because it is calculated using the freezing point depression formula and the given percentage by mass.

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