Questions  

Two moles of calcium carbonate on thermal decomposition gives ‘X’ grams of residue. ‘X’ grams of residue so obtained on heating with coke gets completely converted to ‘Y’ grams of solid. Value of ‘Y’ is

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By Expert Faculty of Sri Chaitanya
ctaimg
a
32
b
128
c
64
d
84
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detailed solution

Correct option is B

CaCO3s2  moles→CaOs2  moles+CO2g CaOs1  mole56 g+3Cs→CaC2s1  mole64 g+COg2 moles                  2 moles(128 g )

ctaimg

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