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Chemical Reaction

identify type...

Question

identify type of reaction

Al(OH) ₃+ 3HCl - - - - AlCl₃+3H₂O

MnO₂+4H⁺ +2Cl^------Mn²⁺+2H₂O +Cl₂

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Solution

The first one is double displacement reaction
and the second one is a redox reaction

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Similar questions

Q. The following two redox reactions are given:
i)

M n O_{4}^{-} + 8 H^{+} + 5 e^{-} \to M n^{2 +} + 4 H_{2} O; E^{o} = X_{1} V

M n O_{2} + 4 H^{+} + 2 e^{-} \to M n^{2 +} + 2 H_{2} O; E^{o} = X_{2} V

E^{o}

for the following reaction.

M n O_{4}^{-} + 4 H^{+} + 3 e^{-} \to M n O_{2} + 2 H_{2} O

Q. Identify the correct balanced redox reaction by using ion-electron method:

B i O_{3}^{-} + M n^{2 +} \to B i^{3 +} + M n O_{4}^{-} + H_{2} O

Q. For the following half cell reactions,

E^{o}

values are also given:

M n^{2 +} + 2 H_{2} O \to M n O_{2} + 4 H^{+} + 2 e^{-}

E^{o} = - 1.23 V

M n O_{4}^{-} + 4 H^{+} + 3 e^{-} \to M n O_{2} + 2 H_{2} O

E^{o} = + 1.70 V

Select the correct statements.

Q. Which of the following are redox reactions?
a.

Z n + 2 H C l ⟶ Z n {C l}_{2} + H_{2}

A l {(O H)}_{3} + 3 H C l ⟶ A l {C l}_{3} + 3 H_{2} O

{A g}^{\oplus} + I^{⊖} ⟶ A g l

d. Disproportionation of

{C u}^{\oplus}

in aqueous solution.

Q. Calculate the value of

E_{M n O_{4}^{-} | M n O_{2}}^{\circ}

M n O_{4}^{-} + 8 H^{+} + 5 e^{-} \to M n^{2 +} + 4 H_{2} O

E^{\circ} = 1.51 V

M n O_{2} + 4 H^{+} + 2 e^{-} \to M n^{2 +} + 2 H_{2} O

E^{\circ} = 1.23 V

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