SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Phosphoric acid is a weak acid that
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has a pH value of 1.0
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cannot neutralise alkaline solution
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changes red litmus paper to blue
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ionises partially in water to produce hydrogen ions
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Explanation:
Detailed explanation-1: -A weak acid is an acid that ionizes only slightly in an aqueous solution. Acetic acid (found in vinegar) is a very common weak acid.
Detailed explanation-2: -An acid, which dissociates completely or almost completely in water are strong acids. An acid that dissociates only partially when dissolved in water are weak acids.
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