i m confused b/w A and D pls give solution for your answer
Q.50) Calculate the amount of 50 % H 2 S O 4 required to decompose 50 g of Marble (calcium carbonate).
A) 49 g
B) 48 g
C) 24.5 g
D) 98 g
 

I think the answer is option C.
As when you will calculate moles of Marble, it will 0.5. And the same moles you have to use for H2SO4 and also we want its 50%.
which will be 0.25 of molecular mas  of H2SO4 which will 24.5     

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I think in this question we have to tell mass of the sollution whose mass is 100g in which 50g of h2so4 is present..with that logic D is correct
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