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Solution


Q.

For the given reaction;

CaCO3​+2HCl⟶CaCl2​+H2O+CO2​

If 90 g CaCO3 is added to 300 mL of HCl which contains 38.55% HCl by mass and has density 1.13 g mL-1, then which of the following option is correct  

Given molar mass of H, Cl, Ca and O are 1, 35.5, 40 and 16 g mol-1 respectively.  [2026]
1 97.30 g of HCl reacted  
2 64.97 g of HCl remains unreacted  
3 60.32 g of HCl remains unreacted  
4 32.85 g of CaCO3​ remains unreacted  

Ans.

(2)