Hydrogen Peroxide
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CHXI09:HYDROGEN

315586 Which of the following equations depict the oxidising nature of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) ?

1 \(\mathrm{2 \mathrm{MnO}_{4}^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2}}\)
2 \(\mathrm{2 \mathrm{Fe}^{3+}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}^{2+}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{I}^{-}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
4 \(\mathrm{\mathrm{KIO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{KIO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
CHXI09:HYDROGEN

315587 Which is not correct when chromium hydroxide is treated with \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) in the presence of \(\mathrm{\mathrm{NaOH}}\)?

1 \(\mathrm{\mathrm{Cr}(\mathrm{OH})_{3}}\) precipitate is converted into soluble sodium chromate
2 The solution acquires yellow colour
3 oxidation state of \(\mathrm{\mathrm{Cr}^{3+}}\) is changed to \(\mathrm{\mathrm{Cr}^{6+}}\)
4 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) acts as a reducing agent
CHXI09:HYDROGEN

315588 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) restores the colour of old oily paintings, blackened by the action of \(\mathrm{H_{2} S}\) gas by

1 Converting \(\mathrm{\mathrm{PbO}_{2}}\) to \(\mathrm{\mathrm{Pb}}\)
2 By oxidising \(\mathrm{\mathrm{PbS}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
3 Converting \(\mathrm{\mathrm{PbCO}_{3}}\) to \(\mathrm{\mathrm{Pb}}\)
4 Oxidising \(\mathrm{\mathrm{PbSO}_{3}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
CHXI09:HYDROGEN

315589 Assertion :
Reactions of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) are fast in basic medium
Reason :
Bases increases the stability of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\)

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315590 The product of the reaction between \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) and \(\mathrm{\mathrm{Cl}_{2}}\) is

1 \(\mathrm{\mathrm{O}_{2}+\mathrm{HOCl}}\)
2 \(\mathrm{2 \mathrm{HCl}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{H}_{2} \mathrm{O}+\mathrm{HCl}}\)
4 \(\mathrm{\mathrm{HCl}+\mathrm{H}_{2}}\)
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CHXI09:HYDROGEN

315586 Which of the following equations depict the oxidising nature of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) ?

1 \(\mathrm{2 \mathrm{MnO}_{4}^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2}}\)
2 \(\mathrm{2 \mathrm{Fe}^{3+}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}^{2+}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{I}^{-}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
4 \(\mathrm{\mathrm{KIO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{KIO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
CHXI09:HYDROGEN

315587 Which is not correct when chromium hydroxide is treated with \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) in the presence of \(\mathrm{\mathrm{NaOH}}\)?

1 \(\mathrm{\mathrm{Cr}(\mathrm{OH})_{3}}\) precipitate is converted into soluble sodium chromate
2 The solution acquires yellow colour
3 oxidation state of \(\mathrm{\mathrm{Cr}^{3+}}\) is changed to \(\mathrm{\mathrm{Cr}^{6+}}\)
4 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) acts as a reducing agent
CHXI09:HYDROGEN

315588 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) restores the colour of old oily paintings, blackened by the action of \(\mathrm{H_{2} S}\) gas by

1 Converting \(\mathrm{\mathrm{PbO}_{2}}\) to \(\mathrm{\mathrm{Pb}}\)
2 By oxidising \(\mathrm{\mathrm{PbS}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
3 Converting \(\mathrm{\mathrm{PbCO}_{3}}\) to \(\mathrm{\mathrm{Pb}}\)
4 Oxidising \(\mathrm{\mathrm{PbSO}_{3}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
CHXI09:HYDROGEN

315589 Assertion :
Reactions of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) are fast in basic medium
Reason :
Bases increases the stability of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\)

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315590 The product of the reaction between \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) and \(\mathrm{\mathrm{Cl}_{2}}\) is

1 \(\mathrm{\mathrm{O}_{2}+\mathrm{HOCl}}\)
2 \(\mathrm{2 \mathrm{HCl}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{H}_{2} \mathrm{O}+\mathrm{HCl}}\)
4 \(\mathrm{\mathrm{HCl}+\mathrm{H}_{2}}\)
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CHXI09:HYDROGEN

315586 Which of the following equations depict the oxidising nature of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) ?

1 \(\mathrm{2 \mathrm{MnO}_{4}^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2}}\)
2 \(\mathrm{2 \mathrm{Fe}^{3+}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}^{2+}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{I}^{-}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
4 \(\mathrm{\mathrm{KIO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{KIO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
CHXI09:HYDROGEN

315587 Which is not correct when chromium hydroxide is treated with \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) in the presence of \(\mathrm{\mathrm{NaOH}}\)?

1 \(\mathrm{\mathrm{Cr}(\mathrm{OH})_{3}}\) precipitate is converted into soluble sodium chromate
2 The solution acquires yellow colour
3 oxidation state of \(\mathrm{\mathrm{Cr}^{3+}}\) is changed to \(\mathrm{\mathrm{Cr}^{6+}}\)
4 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) acts as a reducing agent
CHXI09:HYDROGEN

315588 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) restores the colour of old oily paintings, blackened by the action of \(\mathrm{H_{2} S}\) gas by

1 Converting \(\mathrm{\mathrm{PbO}_{2}}\) to \(\mathrm{\mathrm{Pb}}\)
2 By oxidising \(\mathrm{\mathrm{PbS}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
3 Converting \(\mathrm{\mathrm{PbCO}_{3}}\) to \(\mathrm{\mathrm{Pb}}\)
4 Oxidising \(\mathrm{\mathrm{PbSO}_{3}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
CHXI09:HYDROGEN

315589 Assertion :
Reactions of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) are fast in basic medium
Reason :
Bases increases the stability of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\)

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315590 The product of the reaction between \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) and \(\mathrm{\mathrm{Cl}_{2}}\) is

1 \(\mathrm{\mathrm{O}_{2}+\mathrm{HOCl}}\)
2 \(\mathrm{2 \mathrm{HCl}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{H}_{2} \mathrm{O}+\mathrm{HCl}}\)
4 \(\mathrm{\mathrm{HCl}+\mathrm{H}_{2}}\)
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CHXI09:HYDROGEN

315586 Which of the following equations depict the oxidising nature of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) ?

1 \(\mathrm{2 \mathrm{MnO}_{4}^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2}}\)
2 \(\mathrm{2 \mathrm{Fe}^{3+}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}^{2+}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{I}^{-}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
4 \(\mathrm{\mathrm{KIO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{KIO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
CHXI09:HYDROGEN

315587 Which is not correct when chromium hydroxide is treated with \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) in the presence of \(\mathrm{\mathrm{NaOH}}\)?

1 \(\mathrm{\mathrm{Cr}(\mathrm{OH})_{3}}\) precipitate is converted into soluble sodium chromate
2 The solution acquires yellow colour
3 oxidation state of \(\mathrm{\mathrm{Cr}^{3+}}\) is changed to \(\mathrm{\mathrm{Cr}^{6+}}\)
4 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) acts as a reducing agent
CHXI09:HYDROGEN

315588 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) restores the colour of old oily paintings, blackened by the action of \(\mathrm{H_{2} S}\) gas by

1 Converting \(\mathrm{\mathrm{PbO}_{2}}\) to \(\mathrm{\mathrm{Pb}}\)
2 By oxidising \(\mathrm{\mathrm{PbS}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
3 Converting \(\mathrm{\mathrm{PbCO}_{3}}\) to \(\mathrm{\mathrm{Pb}}\)
4 Oxidising \(\mathrm{\mathrm{PbSO}_{3}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
CHXI09:HYDROGEN

315589 Assertion :
Reactions of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) are fast in basic medium
Reason :
Bases increases the stability of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\)

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315590 The product of the reaction between \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) and \(\mathrm{\mathrm{Cl}_{2}}\) is

1 \(\mathrm{\mathrm{O}_{2}+\mathrm{HOCl}}\)
2 \(\mathrm{2 \mathrm{HCl}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{H}_{2} \mathrm{O}+\mathrm{HCl}}\)
4 \(\mathrm{\mathrm{HCl}+\mathrm{H}_{2}}\)
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CHXI09:HYDROGEN

315586 Which of the following equations depict the oxidising nature of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) ?

1 \(\mathrm{2 \mathrm{MnO}_{4}^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2}}\)
2 \(\mathrm{2 \mathrm{Fe}^{3+}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}^{2+}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{I}^{-}+2 \mathrm{H}^{+}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
4 \(\mathrm{\mathrm{KIO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{KIO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
CHXI09:HYDROGEN

315587 Which is not correct when chromium hydroxide is treated with \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) in the presence of \(\mathrm{\mathrm{NaOH}}\)?

1 \(\mathrm{\mathrm{Cr}(\mathrm{OH})_{3}}\) precipitate is converted into soluble sodium chromate
2 The solution acquires yellow colour
3 oxidation state of \(\mathrm{\mathrm{Cr}^{3+}}\) is changed to \(\mathrm{\mathrm{Cr}^{6+}}\)
4 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) acts as a reducing agent
CHXI09:HYDROGEN

315588 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) restores the colour of old oily paintings, blackened by the action of \(\mathrm{H_{2} S}\) gas by

1 Converting \(\mathrm{\mathrm{PbO}_{2}}\) to \(\mathrm{\mathrm{Pb}}\)
2 By oxidising \(\mathrm{\mathrm{PbS}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
3 Converting \(\mathrm{\mathrm{PbCO}_{3}}\) to \(\mathrm{\mathrm{Pb}}\)
4 Oxidising \(\mathrm{\mathrm{PbSO}_{3}}\) to \(\mathrm{\mathrm{PbSO}_{4}}\)
CHXI09:HYDROGEN

315589 Assertion :
Reactions of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) are fast in basic medium
Reason :
Bases increases the stability of \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\)

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315590 The product of the reaction between \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) and \(\mathrm{\mathrm{Cl}_{2}}\) is

1 \(\mathrm{\mathrm{O}_{2}+\mathrm{HOCl}}\)
2 \(\mathrm{2 \mathrm{HCl}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{H}_{2} \mathrm{O}+\mathrm{HCl}}\)
4 \(\mathrm{\mathrm{HCl}+\mathrm{H}_{2}}\)