GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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on the pH scale is an indicator of Base
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -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-2: -Acid–base indicators are compounds that change color when they become protonated or deprotonated. Because this color change occurs over a specific pH range, indicators can be used to approximate the equivalence point of an acid–base titration.
Detailed explanation-3: -Litmus is a natural indicator. Blue litmus paper turns red if the substance is acidic. Red litmus paper turns blue if the substance is basic or alkaline. Litmus turns red in acidic solutions and blue in basic solutions.
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