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Column-IColumn-IIi) 0.5 mole of SO2(g)p) Occupies 11.2 L at 1 atm and 273 Kii) 1 g of H2(g)q) Weighs 24 giii) 0.5 mole of O3(g)r) Total atoms=1.5×NAiv) 1 g molecule of O2(g)s) Weighs 32 g

A
i) - p, r, s ii)- p iii) - p, q, r iv) - s
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B
i) - p ii)- p,q iii) - p iv) - s
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C
i) - p, r, s ii)- p iii) - p, q iv) - r
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D
i) - p, r ii)- p iii) - p, r iv) - s
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Solution

The correct option is A i) - p, r, s ii)- p iii) - p, q, r iv) - s
And the answer is :
i) 0.5 moles of SO2(g)
1 mole of SO2(g) occupies 22.4 L at STP
0.5 moles of SO2(g) occupies 11.2 L at STP
Number of atoms=Moles×NA×atomicity
The number of atoms in 0.5 moles of SO2(g)=0.5×NA×3=1.5 NA
1 mole of SO2 weighs =32+2×16=64 g
0.5 moles of SO2 weighs 32 g.
Thus, p, r, s are correct match for i).

ii) 1 g of H2(g)
Number of moles =Given massMolar mass ; Given mass=1 g and the molar mass=2 g/mol
Number of moles =12=0.5 mol
1 mole of H2(g) occupies 22.4 L at STP
0.5 moles of H2(g) occupies 11.2 L at STP
Thus, p is the correct match for ii).

iii) 0.5 moles of O3(g)
1 mole of O3(g) occupies 22.4 L at STP
0.5 mole of O3(g) occupies 11.2 L at STP
Weight of 1 mole of O3(g)=16×3=48 g
Weight of 0.5 moles of O3(g)=24 g
Number of atoms=Moles×NA×atomicity
The number of atoms in 0.5 moles of O3(g)=0.5×NA×3=1.5 NA
Thus, p, q, r are correct match for iii).

iv) 1 g molecule of O2 means 1 mole of O2= 2×16=32 g
Thus, s is a correct match for iv).

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