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Which of the following has a PH greater than 7?(a) gastric juice(b) vinegar(c) blood plasma(d) lemon juiceI had been asked this question during an interview.Enquiry is from Equilibrium in section Equilibrium of Chemistry – Class 11

Answer»

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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