Match the Column I with Column II and choose the correct option from the codes given below.

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A-4 B-1 C-2 D-3

A-5 B-1 C-2 D-3

A-4 B-1 C-3 D-2

A-1 B-4 C-2 D-3

answer is A.

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Detailed Solution

A→4, B→1,C→2,D→3 (A) CaCO3100 g⟶ decomposition CaO+CO222.4 L∵100 gCaCO3 on decomposition gives =22.4 LCO2∴10 gCaCO3 on decomposition will give =22.4×10100 LCO2=2.24 LCO2 (B) Na2CO3106 g⟶ Excess HCl2NaCl+H2O+CO222.4 L106 gNa2CO3 gives =22.4 LCO21.06 gNa2CO3 will give =22.4×1.06106 LCO2=0.224 LCO2 (C) C12 g Excess O2 combustion CO222.4 L12 g carbon on combustion gives =22.4 LCO22.4 g carbon on combustion gives=22.4×2.412 LCO2=2×2.24 LCO2=4.48 LCO2(D) 2CO →Combustion Excess O2 2CO2 2(12+16) 2×22.4 L 56 g56 g carbon monoxide on combustion gives=2×22.4 LCO20.56 g carbon monoxide on combustion will give =2×22.4×0.5656=0.448 LCO2

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