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30 volume hydrogen peroxide means (a) 30% of H2O2 solution (b) 30 cm3 solution contains 1g of H2O2

  

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30 volume hydrogen peroxide means

(a) 30% of H2O2 solution

(b) 30 cm3 solution contains 1g of H2O2

(c) 1 cm3 of solution liberates 30 cm3 of O2 at STP

(d) 30 cm3 of solution contains 1 mole of H2O2

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Correct answer: (b) 30 cm3 solution contains 1g of H2O2

Explanation:

30 vol of H2O2 means one volume of H2O2 on decomposition will give 30 volume of oxygen.

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