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Q.

Choose the formula for the oxalate ion

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a

CH3COO−

b

C2O4−2

c

CO3−2

d

C2O4−4

answer is C.

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Detailed Solution

The chemical formula of oxalate ion is C2O4−2 . It is derived from oxalic acid (COOH)2.2H2O . Let us see the structure of oxalate ion as below.

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