OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Molarity of a given phosphoric acid solution (H3PO4) is 3M. It’s normality is ____
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1 N
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2 N
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0.3
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9
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Explanation:
Detailed explanation-1: -H3PO4 is tribasic so N=3M=3×1=3.
Detailed explanation-2: -In Phosphoric acid $H 3PO 4$ number of $H^+$ ions it produces on dissociation per molecule of acid is 3. Hence the n-factor for phosphoric acid $H 3PO 4$ is 3. Molarity is given in question 0.25M. Hence, option C is correct.
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