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Which of the following statements about pH and {H}^{{+}} ion c

Question

Which of the following statements about pH and $H^{+}$ ion concentration is incorrect ?

Addition of one drop of concentrated HCl in

N H_{4} O H

solution decreases pH of the solution

A solution of the mixture of one equivalent of each of

C H_{3} C O O H

and NaOH has a pH of 7.

pH of pure neutral water is not zero

A cold and concentrated

H_{2} S O_{4}

has lower

H^{+}

ion concentration than a dilute solution of

H_{2} S O_{4}

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Which of the following statements about pH and

H^{+}

ion concentration is incorrect ?

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Text solutionVerified

C H_{3} C O O H

is weak acid while NaOH is strong base, so one equivalent of NaOH cannot be neutralised with one equivalent of

C H_{3} C O O H

. Hence, one equivalent of each does not have pH value 7. As the NaOH is a strong base, the solution will be basic having a pH more than 7.

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Question Text	Which of the following statements about pH and $H^{+}$ ion concentration is incorrect ?
Answer Type	Text solution:1
Upvotes	150