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Q55) 100 mL of 1.0M HCl are mixed with 75 ml of 1.0M Na2CO3. The resulting solution will be... [ CPMT 1991]


Na2CO3 + 2HCl → 2NaCl + CO2 + H2O
From above one mole of Na2CO3 neutralizes 2 moles of HCl
given 100 milimoles of HCl and 75 milimoles of Na2CO3
Thus HCl can neutralize only 50 milimoles of Na2CO3, thus solution will be basicAnswer: (b)