SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1-7
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1-14
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1-5
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1-20
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Detailed explanation-1: -Value of pH is determined between 0 and 14 that shows the alkalinity and acidity of the solution. pH 7 is considered as neutral.
Detailed explanation-2: -The range goes from 0-14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
Detailed explanation-3: -But the scale does not have fixed limits, so it is indeed possible to have a pH above 14 or below zero. For example, concentrated hydrochloric acid can have a pH of around-1, while sodium hydroxide solution can have a pH as high as 15.
Detailed explanation-4: -Objects that are not very acidic are called basic. The scale has values ranging from zero (the most acidic) to 14 (the most basic). As you can see from the pH scale above, pure water has a pH value of 7.
Detailed explanation-5: -The solutions with pH values between 7 and 14 are basic in nature.