Which of the following is acyl halide?
Dilute aqueous KMnO4 , at room temperature reacts with R - CH = CH - R to give
In fig., circles C(O,r) and C(O′,r2) touch internally at a point A and AB is a chord of the circle C (O,r) intersecting C(O′,r2) at C. Prove that AC = CB. [3 MARKS]