Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question
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Question

In the estimation of phosphorus by the magnesium pyrophosphate method, what is the final weighed precipitate?
Options
A MgNH₄PO₄
B Mg₂P₂O₇ (magnesium pyrophosphate)
Correct Answer
C (NH₄)₃PO₄·12MoO₃
D Ca₃(PO₄)₂
Correct Answer

Option B is the correct answer.

Detailed Explanation

Phosphorus is converted to H₃PO₄, precipitated as MgNH₄PO₄, then ignited to Mg₂P₂O₇, which is weighed.

Hint

Pyrophosphate.

Question Info

Course: CHM 102
Topic: Qualitative and Quantitative Analysis in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 830 of 1999
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