Pb s -2 KOH conc- - aq - H 2 g A- PbOHB- PbO 2C- K 2 P bO 2

The correct option is C K_2PbO_2Lead is a amphoteric metal. It reacts with both acid and a base. nbsp; Amphoteric metal + Acid/Base → Salt + Hydrogen gas Pb(s ...

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Byju's Answer

Standard X

Chemistry

Amphoteric Oxides of Metals

Pb s +2 KOH c...

Question

Pb(s) +
2KOH(conc.) → (aq) + H2(g)

PbOH

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P b O_{2}

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K_{2} P b O_{2}

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Solution

The correct option is C $K_{2} P b O_{2}$
Lead is a amphoteric metal. It reacts with both acid and a base.
Amphoteric metal + Acid/Base $\to$ Salt + Hydrogen gas
$P b (s) + c o n c . K O H (a q) \to K_{2} P b O_{2} (a q) + H_{2} (g)$
Here, lead combines with KOH and forms potassium plumbite and releases hydrogen gas. The hydrogen gas on contact with a burning splinter produces a pop-up sound.

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Pb(s) + 2KOH(conc.) → (aq) + H2(g)

Pb(s) +
2KOH(conc.) → (aq) + H2(g)