Assuming fully decomposed, the volume of CO_2 released at STP on heating 9.85  g of BaCO_3 (Atomi...

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Assuming fully decomposed, the volume of CO_2 released at STP on heating 9.85  g of BaCO_3 (Atomic mass, Ba=137 ) will be
(a) 2.24  L
(b) 4.96  L
(c) 1.12  L
(d) 0.84  L

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