Which of the following statement is not true about Mohr's salt [CPMT 1

1.	Which of the following statement is not true about Mohr's salt [CPMT 1988]
A.	It decolourises \[KMn{{O}_{4}}\]
B.	It is a primary standard
C.	It is a double salt
D.	Oxidation state of iron is +3 in this salt
Answer» E.

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Which of the following statement is not true about Mohr's salt [CPMT 1988]

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