Question on: JAMB Chemistry - 2019
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\(_4\)
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Correct Option: D
For X to liberate CO\(_2\), X must be carbonate or an oxalate. Since X decolorizes KMnO\(_4\), X must be an oxalate.
Hence,
X is H\(_2\)C\(_2\)O\(_4\)
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