First slide

Hydrogen Peroxide

Question

Which one of the following reactions does not form gaseous product ?

Moderate

A

PbO₂ + H₂O₂ →
B

PbS + H₂O₂ →
C

Cl₂ + H₂O₂ →
D

Na₂CO₃ + H₂O₂ →

Solution

→ PbO₂ + H₂O₂ → PbO + H₂O + O₂↑_(g)
$\large PbS + 4{H_2}{O_2} \to \mathop {Pbs{O_4} \downarrow }\limits_{solid} + \mathop {4{H_2}O}\limits_{liquid}$
*In the above reaction the products are solid & liquids there is no formation of gaseous product.
→ Cl₂ + H₂O₂ → 2HCl + O_2(g)↑
→ Na₂CO₃ + H₂O₂ → NaO₂ + CO_2(g)↑ + H₂O

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