X is a substance which liberates CO(_2) on treatment with concentrated H(_2)SO(_4). A warm solution of X can decolorize acidified KMnO(_4). X is
-
A.
HCOOH -
B.
NaHCO(_3) -
C.
FeCO(_3) -
D.
H(_2)C(_2)O(_4)
Correct Answer: Option D
Explanation
It should be noted that for X to liberate CO(_2), X must be a carbonate or an oxalate. Since X decolorizes KMnO(_4), X must be an oxalate.
Therefore, X is H(_2)C(_2)O(_4).
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