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Among statement (a) – (d), the correct ones are: (a) Decomposition of hydrogen peroxide gives dioxygen. (b) Like hydrogen peroxide, compound, such as KClO3, Pb(NO3)2 and NaNO3 when heated liberate dioxygen. (c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide. (d) Hydrogen peroxide is used for the manufacture of sodium perborate.

1. (1) (a), (c) and (d) only
2. (2) (a), (b), (c) and (d)
3. (3) (a) and (c) only
4. (4) (a), (b) and (c) only

Correct answer: (2) (a), (b), (c) and (d)

Solution

All four statements are accurate: hydrogen peroxide decomposes to release dioxygen, compounds like KClO3 and others can also liberate dioxygen upon heating, 2-Ethylanthraquinone is indeed used in the industrial synthesis of hydrogen peroxide, and hydrogen peroxide is utilized in the production of sodium perborate.

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