Purity and separating mixtures

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Question 4
Easy

Four fractions obtained from a mixture have the melting and boiling point ranges shown in the table below.

FractionMelting point range (∘C)Boiling point range (∘C)A30 to 50150 to 180B0 to 1590 to 110C−40 to −2540 to 65D−90 to −75−10 to 15 \begin{array}{|c|c|c|} \hline \text{Fraction} & \text{Melting point range } (^\circ\text{C}) & \text{Boiling point range } (^\circ\text{C}) \\ \hline \textbf{A} & 30 \text{ to } 50 & 150 \text{ to } 180 \\ \hline \textbf{B} & 0 \text{ to } 15 & 90 \text{ to } 110 \\ \hline \textbf{C} & -40 \text{ to } -25 & 40 \text{ to } 65 \\ \hline \textbf{D} & -90 \text{ to } -75 & -10 \text{ to } 15 \\ \hline \end{array} FractionABCD​Melting point range (∘C)30 to 500 to 15−40 to −25−90 to −75​Boiling point range (∘C)150 to 18090 to 11040 to 65−10 to 15​​

Which fraction is collected at the bottom of the fractional distillation column?

Fraction A

Fraction B

Fraction C

Fraction D

Purity and separating mixtures Questions

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