The property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it is Manganese dioxide is a catalyst.
Hence, option B is correct answer.
What is Catalyst in a chemical reaction ?
A catalyst in a chemical reaction is substance that increases the rate of a chemical reaction.
The reaction of manganese dioxide with hydrogen peroxide is
MnO₂ + H₂O₂ → H₂O + O₂
Now, lets check all options one by one.
Option (A): Manganese dioxide is an acid.
Manganese dioxide (MnO₂) is weak acid and its solubility is very less.
So, it is incorrect option.
Option (B): Manganese dioxide is a catalyst.
Adding a catalyst to a reaction it speeds up the rate of reaction and in the absence of catalyst the reaction proceed slowly.
So, it is correct option.
Option (C): Manganese dioxide is highly reactive.
Manganese dioxide is unstable. Manganese dioxide is is an inorganic compound. Manganese dioxide is oxidizing agent.
So, it is incorrect option.
Option (D): Manganese dioxide is used up very fast.
Manganese dioxide acts as catalyst for decomposition of H₂O₂ that means it is not consumed in the chemical reaction.
So, it is incorrect option.
Thus, from the above conclusion we can say that Manganese dioxide is a catalyst is the property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it.
Hence, option B is correct answer.
Learn more about Catalyst here: https://brainly.com/question/12507566
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