Question

Bottle (A) contains 320 mL of `H_(2)O_(2)` solution and labelled with 10 V `H_(2)O_(2)` and bottle (B) contains 80 mL `H_(2)O_(2)` having molarity 2.5 M. Content of bottle (A) and bottle (B) are mixed and solution is filled in bottle (C). Select the correct label for bottle (C) in terms of volume strength and g/litre. (Assume 1 mole of an ideal gas occupies 22.4 L at STP)
A. `13.6V` & `41.285g//L`
B. `11.2V` & `0.68g//L`
C. `5.6V` & `0.68g//L`
D. `5.6V` & `41.285 g//L`

Answer 1

Correct Answer - A
If two `H_(2)O_(2)` solutions are mixed then resulting volume strength
`=sum ("Volume of solution" xx "Volume of strength")/("Total volume of mixture")`