-factor of in the reaction is: — Redox Reactions and Volumetric Analysis Chemistry Question
Question
$n$-factor of $H_3PO_4$ in the reaction $H_3PO_4 + Ca(OH)_2 \rightarrow CaHPO_4 + 2H_2O$ is:
Answer: B
💡 Solution & Explanation
$H_3PO_4$ is a tribasic acid. In this specific reaction, it loses 2 protons to form $HPO_4^{2-}$ (leaving one $H$ attached). The number of replaceable $H^+$ ions actually replaced is 2. Thus, $n$-factor = 2.
💬Ask on WhatsApp →
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes