Which one of the following solutions having same concentration will have lowest pH value?
(1) hydrochloric acid
(2) lemon juice
(3) water
(4) sodium hydroxide

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Solution

pH scale varies from 0-14. Acids have a pH less than 7 while bases have a pH more than 7. Hydrochloric acid is a strong acid, so as compared to other options, it will have the lowest pH.

Hence, the correct answer is option 1.

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Four student (a), (b), (c) and (d) measured the pH values of water, lemon juice and sodium bicarbonate solution. What is the correct decreasing order of pH values?

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Which one of the following solutions having same concentration will have lowest pH value? (1) hydrochloric acid (2) lemon juice (3) water (4) sodium hydroxide

pH scale varies from 0-14. Acids have a pH less than 7 while bases have a pH more than 7. Hydrochloric acid is a strong acid, so as compared to other options, it will have the lowest pH. Hence, the correct answer is option 1.

Which one of the following solutions having same concentration will have lowest pH value?
(1) hydrochloric acid
(2) lemon juice
(3) water
(4) sodium hydroxide

pH scale varies from 0-14. Acids have a pH less than 7 while bases have a pH more than 7. Hydrochloric acid is a strong acid, so as compared to other options, it will have the lowest pH.

Hence, the correct answer is option 1.