The isotherms of a gas are shown below :

Among the following
(i) At `T_1 ` , the gas cannot be liquified
(ii) At point B, liquid starts to appear at `T_2`
(iii) `T_C` is the highest temperature at which the gas can be liquified
(iv) At point A , a small increase in pressure condense the whole system to a liquid.
teh correct statements are :

Options

A. only (i) and (ii)
B. only (i), (iii) and (iv)
C. only (ii), (iii) and (iv)
D. (i), (ii), (iii) and (iv)

Answer

D

Explanation

Since `T_1 gt T_c` , the gas cannot be liquefied at `T_1T_c` is the highest temperature at which the gas can be liquefied.
At temperature `T_2`, liquid starts to appear at point B, however a small increase in pressure at point A condenses the whole system to liquid.