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It is customary to indicate the strength...

It is customary to indicate the strength of a sample of `H_(2)O_(2)` under specification of volume. The strength of `H_(2)O_(2)` solution can also be in %(w/v) or molarity or normality,"10 Vol `H_(2)O_(2)` solution means I ml of`H_(2)O_(2)` solution decomposes to give 10 ml of `O_(2)` gas at STP. 1 lit of `H_(2)O_(2)` solution decomposes to give 10 lit of `O_(2)` gas at STR.
The volume of ''20 V `H_(2)O_(2)` solution required to prepares is 5 litres of oxygen at STP is

A

125 ml

B

250 ml

C

100 ml

D

50 ml

Text Solution

Verified by Experts

The correct Answer is:
B
`x xx 20=5000 , x=250 ml`
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