Questions

Which one of the following reactions is an example of metal displacement reaction?

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V2O5(s)+5Ca(s)⟶Δ2V(s)+5CaO(s)

2Na(s)+2H2O(I)⟶→NaOH(aq)+H2(g)

Fe(s)+2HCl(aq)⟶HFeCl2(aq)+H2(g)

Cl2(g)+2KI(aq)⟶s2KCl(aq)+l2(s)

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detailed solution

Correct option is A

More electro positive metal displaces less electro positive metal.

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Similar Questions

Match Column I with Column II and select the correct answer from given codes.

	Column I (Types of redox reactions)		Column II (Redox reactions)
A.	Combustion reaction	1.	${CH}_{4} (g) + 2 O_{2} \overset{Δ}{⟶} {CO}_{2} (g) + 2 H_{2} O (l)$
B.	Disproportionation reaction	2.	$2 NaH (s) \overset{Δ}{⟶} 2 Na (s) + H_{2} (g)$
C.	Decomposition reaction	3.	$S_{8} (s) + 12 {OH}^{-} (aq) ⟶ 4 S^{2 -} (aq) + 2 S_{2} O_{3} {}^{2 -}(aq) + 6 H_{2} O (l)$
D.	Displacement reaction	4.	${Cr}_{2} O_{3} (s) + 2 Al (s) \overset{Δ}{⟶} {Al}_{2} O_{3} (s) + 2 Cr (s)$