Number of equivalents of HCl present in 100 mL of its solution whose pH is 4:

Number of equivalents of HCl present in 100 mL of its solution whose pH is 4:
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Number of equivalents of HCl present in 100 mL of its solution whose pH is 4: A. `10^(-4)` B. `10^(-3)` C. `10^(-2)` D. `10^(-5)`
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