Mr. Rao owns a famous beauty parlour . For bleaching of hair, renowned actress katrina kaif enters parlour but, she was astonished to find a trainee hair dresser. She realised that hair dresser is inefficient in his job and unsure which amound the four bottles is to be used for bleaching .She was shown four bottles containing 500 ml of `H_(2)O_(2)` solution each.
Katrina was further told that:
(a) `H_(2)O_(2)` solution are used for bleaching of hair.
(b) only one complete bottle to be used per person.
(c) requirement of oxygen for a good bleach is 10% by mass of hair.
Which other combination of two bottles can provide exact amount of `H_(2)O_(2)` for bleaching , if half of the amount of the solution in two bottle choosen are mixed?
A. A and B
B. C and D
C. B and C
D. A and D
