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CO can be prepared by...

`CO` can be prepared by

A

heating HCOOH with conc. `H_(2)SO_(4)`

B

heating `K_(4) [Fe (CN)_(6)]` with conc. `H_(2)SO_(4)`

C

heating malonic acid with `P_(2)O_(5)`

D

hydrolysis of `Mn_(5)C_(2)`

Text Solution

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The correct Answer is:
A, B
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