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Q.

Choose the formula for the oxalate ion

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a

CH3COO-

b

C2O4-4

c

C2O4-2

d

CO3-2

answer is C.

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Detailed Solution

The chemical formula of oxalate ion is C2O4-2.It is derived from oxalic acid COOH2.2H2O. Let us see the structure of oxalate ion as below.

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