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Which of the following has a PH greater than 7?

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in Chemistry – Class 11 by (148k points)
Which of the following has a PH greater than 7?

(a) gastric juice

(b) vinegar

(c) blood plasma

(d) lemon juice

I had been asked this question during an interview.

Enquiry is from Equilibrium in section Equilibrium of Chemistry – Class 11

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Right choice is (c) blood plasma

For explanation I would say: Acids always have a pH below 7 and bases have a pH of above 7, while neutral compounds have a pH of 7. Here gastric juice, vinegar, and lemon are acids, so they have a pH of below 7, but blood plasma is a base. It has a pH greater than 7.

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