In \(\mathrm{\mathrm{Ag}_{2} \mathrm{O}(\mathrm{O} . \mathrm{N}}\). of \(\mathrm{\mathrm{Ag}}\) is +1\(\mathrm{)}\) in \(\mathrm{\mathrm{Ag}}\) the O.N. is 0 . There is gain of electrons, hence \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) is reducing agent.
CHXI08:REDOX REACTIONS
315358
Assertion : In the reaction, \(\mathrm{Mg}_{(\mathrm{s})}+\mathrm{F}_{2(\mathrm{~g})} \rightarrow \mathrm{MgF}_{2(\mathrm{~s})}\) Magnesium loses electrons and acts as a reducing agent. Reason : Reduction in general means acceptance of electron(s) by a reactant.
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.
Explanation:
Oxidation is the loss of electrons, exemplified by magnesium in this reaction, which serves as a reducing agent by providing electrons to fluorine, the substance undergoing reduction.. So the option (2) is correct.
CHXI08:REDOX REACTIONS
315374
The oxides which cannot act as reductant? (I) \(\mathrm{\mathrm{CO}_{2}}\) (II) \(\mathrm{\mathrm{SO}_{3}}\) (III) \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) (IV) \(\mathrm{\mathrm{NO}_{2}}\)
1 (I), (II), (III)
2 (II), (III), (IV)
3 (I), (II), (IV)
4 (III), (IV)
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315359
Which of the following oxides can act both as an oxidising agent as well as reducing agent?
1 \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\)
2 \(\mathrm{\mathrm{SO}_{2}}\)
3 \(\mathrm{\mathrm{SO}_{3}}\)
4 \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\)
Explanation:
\(\mathrm{\mathrm{SO}_{2}}\) oxides can act both as an oxidising agent as well as reducing agent. It behaves as a reducing agent in moist conditions. It convert iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate (VII) solution. \(\mathrm{2 \mathrm{Fe}^{3+}+\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 2 \mathrm{Fe}^{2+}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}}\) When \(\mathrm{\mathrm{SO}_{2}}\) reacts with \(\mathrm{\mathrm{H}_{2} \mathrm{~S}}\), it produces sulphur and water. In this reaction, ' \(\mathrm{\mathrm{SO}_{2}}\) ' act as an oxidising agent.
MHTCET - 2019
CHXI08:REDOX REACTIONS
315360
In which of the following reactions the starred element acts as oxidising agent?
In \(\mathrm{\mathrm{Ag}_{2} \mathrm{O}(\mathrm{O} . \mathrm{N}}\). of \(\mathrm{\mathrm{Ag}}\) is +1\(\mathrm{)}\) in \(\mathrm{\mathrm{Ag}}\) the O.N. is 0 . There is gain of electrons, hence \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) is reducing agent.
CHXI08:REDOX REACTIONS
315358
Assertion : In the reaction, \(\mathrm{Mg}_{(\mathrm{s})}+\mathrm{F}_{2(\mathrm{~g})} \rightarrow \mathrm{MgF}_{2(\mathrm{~s})}\) Magnesium loses electrons and acts as a reducing agent. Reason : Reduction in general means acceptance of electron(s) by a reactant.
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.
Explanation:
Oxidation is the loss of electrons, exemplified by magnesium in this reaction, which serves as a reducing agent by providing electrons to fluorine, the substance undergoing reduction.. So the option (2) is correct.
CHXI08:REDOX REACTIONS
315374
The oxides which cannot act as reductant? (I) \(\mathrm{\mathrm{CO}_{2}}\) (II) \(\mathrm{\mathrm{SO}_{3}}\) (III) \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) (IV) \(\mathrm{\mathrm{NO}_{2}}\)
1 (I), (II), (III)
2 (II), (III), (IV)
3 (I), (II), (IV)
4 (III), (IV)
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315359
Which of the following oxides can act both as an oxidising agent as well as reducing agent?
1 \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\)
2 \(\mathrm{\mathrm{SO}_{2}}\)
3 \(\mathrm{\mathrm{SO}_{3}}\)
4 \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\)
Explanation:
\(\mathrm{\mathrm{SO}_{2}}\) oxides can act both as an oxidising agent as well as reducing agent. It behaves as a reducing agent in moist conditions. It convert iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate (VII) solution. \(\mathrm{2 \mathrm{Fe}^{3+}+\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 2 \mathrm{Fe}^{2+}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}}\) When \(\mathrm{\mathrm{SO}_{2}}\) reacts with \(\mathrm{\mathrm{H}_{2} \mathrm{~S}}\), it produces sulphur and water. In this reaction, ' \(\mathrm{\mathrm{SO}_{2}}\) ' act as an oxidising agent.
MHTCET - 2019
CHXI08:REDOX REACTIONS
315360
In which of the following reactions the starred element acts as oxidising agent?
In \(\mathrm{\mathrm{Ag}_{2} \mathrm{O}(\mathrm{O} . \mathrm{N}}\). of \(\mathrm{\mathrm{Ag}}\) is +1\(\mathrm{)}\) in \(\mathrm{\mathrm{Ag}}\) the O.N. is 0 . There is gain of electrons, hence \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) is reducing agent.
CHXI08:REDOX REACTIONS
315358
Assertion : In the reaction, \(\mathrm{Mg}_{(\mathrm{s})}+\mathrm{F}_{2(\mathrm{~g})} \rightarrow \mathrm{MgF}_{2(\mathrm{~s})}\) Magnesium loses electrons and acts as a reducing agent. Reason : Reduction in general means acceptance of electron(s) by a reactant.
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.
Explanation:
Oxidation is the loss of electrons, exemplified by magnesium in this reaction, which serves as a reducing agent by providing electrons to fluorine, the substance undergoing reduction.. So the option (2) is correct.
CHXI08:REDOX REACTIONS
315374
The oxides which cannot act as reductant? (I) \(\mathrm{\mathrm{CO}_{2}}\) (II) \(\mathrm{\mathrm{SO}_{3}}\) (III) \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) (IV) \(\mathrm{\mathrm{NO}_{2}}\)
1 (I), (II), (III)
2 (II), (III), (IV)
3 (I), (II), (IV)
4 (III), (IV)
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315359
Which of the following oxides can act both as an oxidising agent as well as reducing agent?
1 \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\)
2 \(\mathrm{\mathrm{SO}_{2}}\)
3 \(\mathrm{\mathrm{SO}_{3}}\)
4 \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\)
Explanation:
\(\mathrm{\mathrm{SO}_{2}}\) oxides can act both as an oxidising agent as well as reducing agent. It behaves as a reducing agent in moist conditions. It convert iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate (VII) solution. \(\mathrm{2 \mathrm{Fe}^{3+}+\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 2 \mathrm{Fe}^{2+}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}}\) When \(\mathrm{\mathrm{SO}_{2}}\) reacts with \(\mathrm{\mathrm{H}_{2} \mathrm{~S}}\), it produces sulphur and water. In this reaction, ' \(\mathrm{\mathrm{SO}_{2}}\) ' act as an oxidising agent.
MHTCET - 2019
CHXI08:REDOX REACTIONS
315360
In which of the following reactions the starred element acts as oxidising agent?
In \(\mathrm{\mathrm{Ag}_{2} \mathrm{O}(\mathrm{O} . \mathrm{N}}\). of \(\mathrm{\mathrm{Ag}}\) is +1\(\mathrm{)}\) in \(\mathrm{\mathrm{Ag}}\) the O.N. is 0 . There is gain of electrons, hence \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) is reducing agent.
CHXI08:REDOX REACTIONS
315358
Assertion : In the reaction, \(\mathrm{Mg}_{(\mathrm{s})}+\mathrm{F}_{2(\mathrm{~g})} \rightarrow \mathrm{MgF}_{2(\mathrm{~s})}\) Magnesium loses electrons and acts as a reducing agent. Reason : Reduction in general means acceptance of electron(s) by a reactant.
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.
Explanation:
Oxidation is the loss of electrons, exemplified by magnesium in this reaction, which serves as a reducing agent by providing electrons to fluorine, the substance undergoing reduction.. So the option (2) is correct.
CHXI08:REDOX REACTIONS
315374
The oxides which cannot act as reductant? (I) \(\mathrm{\mathrm{CO}_{2}}\) (II) \(\mathrm{\mathrm{SO}_{3}}\) (III) \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) (IV) \(\mathrm{\mathrm{NO}_{2}}\)
1 (I), (II), (III)
2 (II), (III), (IV)
3 (I), (II), (IV)
4 (III), (IV)
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315359
Which of the following oxides can act both as an oxidising agent as well as reducing agent?
1 \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\)
2 \(\mathrm{\mathrm{SO}_{2}}\)
3 \(\mathrm{\mathrm{SO}_{3}}\)
4 \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\)
Explanation:
\(\mathrm{\mathrm{SO}_{2}}\) oxides can act both as an oxidising agent as well as reducing agent. It behaves as a reducing agent in moist conditions. It convert iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate (VII) solution. \(\mathrm{2 \mathrm{Fe}^{3+}+\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 2 \mathrm{Fe}^{2+}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}}\) When \(\mathrm{\mathrm{SO}_{2}}\) reacts with \(\mathrm{\mathrm{H}_{2} \mathrm{~S}}\), it produces sulphur and water. In this reaction, ' \(\mathrm{\mathrm{SO}_{2}}\) ' act as an oxidising agent.
MHTCET - 2019
CHXI08:REDOX REACTIONS
315360
In which of the following reactions the starred element acts as oxidising agent?
In \(\mathrm{\mathrm{Ag}_{2} \mathrm{O}(\mathrm{O} . \mathrm{N}}\). of \(\mathrm{\mathrm{Ag}}\) is +1\(\mathrm{)}\) in \(\mathrm{\mathrm{Ag}}\) the O.N. is 0 . There is gain of electrons, hence \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}}\) is reducing agent.
CHXI08:REDOX REACTIONS
315358
Assertion : In the reaction, \(\mathrm{Mg}_{(\mathrm{s})}+\mathrm{F}_{2(\mathrm{~g})} \rightarrow \mathrm{MgF}_{2(\mathrm{~s})}\) Magnesium loses electrons and acts as a reducing agent. Reason : Reduction in general means acceptance of electron(s) by a reactant.
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.
Explanation:
Oxidation is the loss of electrons, exemplified by magnesium in this reaction, which serves as a reducing agent by providing electrons to fluorine, the substance undergoing reduction.. So the option (2) is correct.
CHXI08:REDOX REACTIONS
315374
The oxides which cannot act as reductant? (I) \(\mathrm{\mathrm{CO}_{2}}\) (II) \(\mathrm{\mathrm{SO}_{3}}\) (III) \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) (IV) \(\mathrm{\mathrm{NO}_{2}}\)
1 (I), (II), (III)
2 (II), (III), (IV)
3 (I), (II), (IV)
4 (III), (IV)
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315359
Which of the following oxides can act both as an oxidising agent as well as reducing agent?
1 \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\)
2 \(\mathrm{\mathrm{SO}_{2}}\)
3 \(\mathrm{\mathrm{SO}_{3}}\)
4 \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\)
Explanation:
\(\mathrm{\mathrm{SO}_{2}}\) oxides can act both as an oxidising agent as well as reducing agent. It behaves as a reducing agent in moist conditions. It convert iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate (VII) solution. \(\mathrm{2 \mathrm{Fe}^{3+}+\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 2 \mathrm{Fe}^{2+}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}}\) When \(\mathrm{\mathrm{SO}_{2}}\) reacts with \(\mathrm{\mathrm{H}_{2} \mathrm{~S}}\), it produces sulphur and water. In this reaction, ' \(\mathrm{\mathrm{SO}_{2}}\) ' act as an oxidising agent.
MHTCET - 2019
CHXI08:REDOX REACTIONS
315360
In which of the following reactions the starred element acts as oxidising agent?
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