Question

Which of the following liquid would possess highest vapour pressure at room temperature (a) Acetic acid (b) chlorobenzene (c) methyl alcohol (d) nitrobenzene

Answer 1

Answer:

Explanation:

as vapour pressure is colligative property

vapour pressure directly proportional to vant hoff factor

acetic acid

ch3cooh = ch3coo- + h+

c6h5cl    = c6h5+ + cl-

ch3oh    = ch2o-2 + 2h+

c6h5no2  =  c6h5- + no2-

so methanol has highest vapour pressure