Verified Answer :

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\(pH=-\log_{10} [H^+] \Rightarrow [H^+]=10^{-pH} \\ \\ pH=6 \\ \ [H^+]=10^{-6}=1 \times 10^{-6}\)

The answer is B. 1 × 10⁻⁶ M.

Answer : The correct option is, \(1\times 10^{-6}M\)

Explanation :  Given,

The value of pH of HCl = 6

As we know that,

pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.

The formula of pH is :

\(pH=-\log [H^+]\)

Now put all the given values in this formula, we get the concentration of hydrogen ion.

\(6=-\log [H^+]\)

\([H^+]=1\times 10^{-6}M\)

Therefore, the concentration of hydrogen ion is, \(1\times 10^{-6}M\)

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