Complete the following equation: \[\ce{2MnO4- + 6H+ + 5NO2- ->}\]

\[\ce{2MnO4- + 6H+ + 5NO2- -> 2Mn^2+ + 5NO3- + 3H2O}\]

Complete the following equation: 2MnOX4X−+6HX++5NOX2X−⟶ - Chemistry

प्रश्न

Complete the following equation:

$2 MnO_{4}^{-} + 6 H^{+} + 5 NO_{2}^{-} ⟶$

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उत्तर

$2 MnO_{4}^{-} + 6 H^{+} + 5 NO_{2}^{-} ⟶ 2 Mn^{2 +} + 5 NO_{3}^{-} + 3 H_{2} O$

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Some Important Compounds of Transition Elements - Oxides and Oxoanions of Metals

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Q 16 Q 15 Q 17

2014-2015 (March) Panchkula Set 1

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Some Important Compounds of Transition Elements - Oxides and Oxoanions of Metals

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Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with iron (II) ions? Write the ionic equation for the reaction.

E⁰ value for Mn³⁺ Mn²⁺ couple is much more positive than that for Cr^3-/ Cr^2-.

Zinc carbonate is precipitated from zinc sulphate solution by the addition of ___________.

Which of the following reactions are disproportionation reactions?

(a) $Cu^{+} ⟶ Cu^{2 +} + Cu$

(b) $3 MnO_{4}^{-} + 4 H^{+} ⟶ 2 MnO_{4}^{-} + MnO_{2} + 2 H_{2} O$

(d) $2 MnO_{4}^{-} + 3 Mn^{2 +} + 2 H_{2} O ⟶ 5 MnO_{2} + 4 H^{+}$

Which of the following is amphoteric oxide?

$Mn_{2} O_{7}, CrO_{3}, Cr_{2} O_{3}, CrO, V_{2} O_{5}, V_{2} O_{4}$

When $Cu^{2 +}$ ion is treated with $KI$ , a white precipitate is formed. Explain the reaction with the help of chemical equation.

KMnO₄ is coloured due to ______.

Indicate the steps in the preparation of $K_{2} Cr_{2} O_{7}$ from chromite ore.

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with oxalic acid? Write the ionic equation for the reaction.

Complete the following equation: 2MnOX4X−+6HX++5NOX2X−⟶ - Chemistry

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Complete the following equation: 2MnOX4X−+6HX++5NOX2X−⟶ - Chemistry

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