Question:
A 1.0 M NaOH reacts with 20 mL of HCl solution for complete neutralisation. The molarity of HCl solution is?
A 1.0 M NaOH reacts with 20 mL of HCl solution for complete neutralisation. The molarity of HCl solution is?
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For neutralisation reactions, use the equation \( M_1 V_1 = M_2 V_2 \) to calculate unknown concentrations.
Updated On: Jan 12, 2026
- 0.99
- 0.98
- 0.059
- 0.0099
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The Correct Option is C
Solution and Explanation
To find the molarity of the HCl solution, we use the formula for neutralisation reactions:
\[
M_1 V_1 = M_2 V_2
\]
where \( M_1 \) and \( V_1 \) are the molarity and volume of NaOH, and \( M_2 \) and \( V_2 \) are the molarity and volume of HCl. After substituting the known values, the molarity of HCl is calculated.
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