The boiling point of 3 pure substances is given below: benzene C 6H 6 (80.1 °C), chloroform CHCI 3 (61.2 °C) and pyridine C 6H 5N (115 °C). Which of the following statements is true about their properties? O a. Benezene is most viscose among 3 liquids at 25 °C. O b. Pyridine has the lowest molar enthalpy of vaporization. OC. Chloroform has the greatest vapor pressure at 30 °C. d. At 50 °C, benzene is gas. e. Chloroform has the lowest evaporation rate at 25 °C.

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The boiling point of 3 pure substances is given below: benzene C 6H 6 (80.1 °C), chloroform CHCI 3 (61.2 °C) and pyridine C 6H 5N (115
°C). Which of the following statements is true about their properties?
O a. Benezene is most viscose among 3 liquids at 25 °C.
b. Pyridine has the lowest molar enthalpy of vaporization.
OC. Chloroform has the greatest vapor pressure at 30 °C.
O d. At 50 °C, benzene is gas.
e. Chloroform has the lowest evaporation rate at 25 °C.
Transcribed Image Text:The boiling point of 3 pure substances is given below: benzene C 6H 6 (80.1 °C), chloroform CHCI 3 (61.2 °C) and pyridine C 6H 5N (115 °C). Which of the following statements is true about their properties? O a. Benezene is most viscose among 3 liquids at 25 °C. b. Pyridine has the lowest molar enthalpy of vaporization. OC. Chloroform has the greatest vapor pressure at 30 °C. O d. At 50 °C, benzene is gas. e. Chloroform has the lowest evaporation rate at 25 °C.
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