Which of the following is the composition of the yellow precipitate obtained in the…

CHEMISTRY · Single correct · ICSE · Chemistry · Analytical Chemistry · Analytical Chemistry

Problem

Which of the following is the composition of the yellow precipitate obtained in the test for phosphates using ammonium molybdate? (1)

(\text{NH}_4)_3[\text{PMo}_{12}\text{O}_{40}]

(2)

(\text{NH}_4)_3[\text{PMo}_{12}\text{O}_{36}]

(3)

(\text{NH}_4)_3\text{PO}_4 \cdot 10\text{MoO}_3

(4)

(\text{NH}_4)_3\text{PO}_4 \cdot 14\text{MoO}_3