| Among statements (A)-(D) the correct ones are: |
| (A) Decomposition of hydrogen peroxide gives dioxygen. |
| (B) Like hydrogen peroxide, compounds, such as \[KCl{{O}_{3}},Pb\,{{(N{{O}_{3}})}_{2}}\] and \[NaN{{O}_{3}}\]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. |
A) (A) and (C) only
B) (A), (B) and (C) only
C) (A), (B), (C) and (D)
D) (A), (C) and (D) only
Correct Answer: C
Solution :
[c] \[{{H}_{2}}{{O}_{2}}\xrightarrow{\Delta }\,{{H}_{2}}O+\frac{1}{2}\,{{O}_{2}}\] \[KCl{{O}_{3}},\text{ }Pb{{(N{{O}_{3}})}_{2}},\text{ }NaN{{O}_{3}}\] on heating will release \[{{O}_{2}}\] gas. \[\underset{Sodium\,metaborte}{\mathop{2\,NaB{{O}_{2}}}}\,+2{{H}_{2}}{{O}_{2}}+6{{H}_{2}}O\xrightarrow{{}}\]\[N{{a}_{2}}\left[ \underset{Sodium\,Peroxoborate}{\mathop{{{(OH)}_{2}}B{{(O-O)}_{2}}}}\,B{{(OH)}_{2}} \right]\,.6{{H}_{2}}O\]
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