Question -Calculate n-factor of Na3PO4in the following reaction. Na3PO4 +3BaCl2→ 6NaCl + Ba3(PO4)2
Options:
A .  2
B .  3
C .  4
D .  6
Answer: Option B : B This is the type of reaction where none of the atoms involved undergo a change in their oxidation states. A simple way to find the n-factor of Na3PO4 in such reactions would be to find the amount of cationic charge replaced per molecule. In 2Na3PO4, we have6Na+ So, Na3PO4 has 3Na+ Na+ can be cosider to be similar to H+in H3PO4 (just an analogy)
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