13. If Ca3(Po4)2 and H3PO3contains same numberof 'P' atoms then the ra

1.	13. If Ca3(Po4)2 and H3PO3contains same numberof 'P' atoms then the ratio of oxygen atoms in thesecompounds respectively is:(B)2/13
Answer» Explanation: 1mole H3PO3 contains 1mole of P. 1mole Ca3(PO4)2 contains 2 mole P. As the NUMBER of P ATOMS is same, Ca3(PO4)2 must be 1/2mole. Ratio of Oxygen=(4x1/2x2)/3=4/3.

13. If Ca3(Po4)2 and H3PO3contains same numberof 'P' atoms then the ratio of oxygen atoms in thesecompounds respectively is:(B)2/13

Answer»

Explanation:

1mole H3PO3 contains 1mole of P.

1mole Ca3(PO4)2 contains 2 mole P.

As the NUMBER of P ATOMS is same, Ca3(PO4)2 must be 1/2mole.

Ratio of Oxygen=(4x1/2x2)/3=4/3.