`CO_(2)` gas is liquefaction for 1 mole of `CO_(2)`.

Then which statement is (are) correct in gaseous phase will
(I) The maximum density of gas is 0.1 gm/ml
(II) The density of liquid `CO_(2)` is 1 g/ml at 60 atm.
(III) At point C `50%` of `CO_(2)` is liquefied.
(IV) The compressibility factor of gas at `27^(@)C` is always less than 1.
Which of the above is/are correct

Options

A. only i
B. i and ii
C. i, ii and iii
D. all

Answer

C