`N_(2)O_(4)(g) hArr 2NO_(2)(g), K_(c) = 4`. This reversible reaction is studied graphically as shown in figure. Select the correct statements out of P,Q and R.
(P) Reaction quotient has maximum value at point A
(Q) Reaction proceeds left to right at a point when `[N_(2)O_(4)] = [NO_(2)] = 0.1M`
(R) `K_(c) = Q` when point D or F is reached
A. P,Q
B. Q,R
C. P,R
D. P,Q,R
