Question

Equal quantities of different liquids are placed in closed manometers at 20°C. Which liquid has the highest vapor pressure?

Answer 1

And how do you expect to get an answer for this.....?

Explanation:

You have provided no details as to the identity of the liquids......they could be volatile, involatile etc.; we simply DON'T KNOW. We are not mind-readers.....

I could suggest 5 liquids.....i.e. mercury, water, ethanol, bromine, diethyl ether.......these are listed in the order of INCREASING vapour pressure....something that depends on the given temperature.......