Which of the following solutions has the maximum pH value?

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$0.2 M {HNO}_{3}$

$0.2 M {NaC}_{2} H_{3} O_{2}$

$0.2 MHCl$

$0.2 M {HC}_{2} H_{3} O_{2}$

answer is D.

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Detailed Solution

Sodium acetate solution will be alkaline and thus will have maximum value of pH.

Water's pH level indicates how acidic or basic it is. The range is 0 to 14, with 7 acting as a neutral value. A pH of higher than 7 denotes a base, whereas one of less than 7 suggests acidity. The pH scale really measures the proportion of free hydrogen and hydroxyl ions in water.

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