UPSC NDA II 2025 General Ability Paper

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Question : 107 of 150
 
Marks: +1, -0
Match List I with List II and select the answer using the code given below the Lists : 
List I
(Reaction)
List II
(Type)
A.
CaO(s) + H2O (I) â†’ Ca(OH)2 (aq) 1.
Single Displacement
B.
CaCO3 (s) â†’ CaO(s) + CO2(g) 2.
Double displacement
C.
Pb(s) + CuCl2(aq) â†’ PbCl2(aq) + Cu(s)
3.
Combination
D.
Na2SO4(aq) + BaCl2 (aq) â†’ BaSO4(s) + 2NaCl(aq)
4.
Decomposition
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