# The volume of oxygen liberated at STP when 10ml of 15v-$H_2O_2$ decomposes

$(a)\;150ml\qquad(b)\;300ml\qquad(c)\;3000ml\qquad(d)\;1500ml$

The volume of oxygen liberated at STP when 10ml of 15v-$H_2O_2$ decomposes 150ml
Hence (a) is the correct answer.