Consider the reaction : H 2 SO 3 aq + Sn aq 4 + + H 2 O l ⁡ → Sn aq 2 + + HSO 4 aq - + 3 H aq + Which of the following statements is correct ?

H 2 SO 3 is the reducing agent because it undergoes oxidation

Sn 4 + is the oxidizing agent because it undergoes oxidation

Sn 4 + is the reducing agent because it undergoes oxidation

H 2 SO 3 is the reducing agent because it undergoes reduction

HARD

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Which of the following statements are true for the reaction of ${Fe}_{2} O_{3}$ with aluminium?

$1 .$ It is known as the thermite reaction.

$2 .$ The heat evolved is used for welding purposes.

$3 .$ Aluminium metal acts as an oxidizing agent.

$4 .$ Molten Fe and Al are formed at the end of the reaction.

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Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions in Terms of Electron Transfer

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H_{2} {SO}_{3 (aq)} + {Sn}_{(aq)}^{4 +} + H_{2} O_{(l)} \to {Sn}_{(aq)}^{2 +} + {HSO}_{4 (aq)}^{-} + 3 H_{(aq)}^{+}

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Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions in Terms of Electron Transfer

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Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions in Terms of Electron Transfer

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Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions in Terms of Electron Transfer

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