Which of the following reactions is the metal displacement reaction? Choose the right option.

Option 1 - 2KClO₃ → 2KCl + 3O₂

Option 2 - 2KClO₃ → 2KCl + 3O₂

Option 3 - Fe + 2HCl → FeCl₂ + H₂ ↑

Option 4 - 2 Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂ ↑

2 Views|Posted 5 months ago

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Vishal Baghel | Contributor-Level 10

5 months ago

Correct Option - 2

Detailed Solution:

Aluminium is more electropositive than Cr, so it displaced chromium from Cr? O?
Cr? O? + Al - (Δ)-> Al? O? + Cr

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Chemistry NCERT Exemplar Solutions Class 11th Chapter Eleven 2025

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	Column I (Ores)		Column II (Formula)
(A)	Fluorspar	(p)	Al₂O₃.2H₂O
(B)	Cryolite	(q)	CaF₂
(C)	Bauxite	(r)	MgCO₃.CaCO₃
(D)	Dolomite	(s)	Na₃[AIF₆]