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Chemistry
Anhydrous formic acid is prepared by
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Q. Anhydrous formic acid is prepared by
Aldehydes Ketones and Carboxylic Acids
A
heating $NaOH$ with $CO$ at $210^{\circ} C$ under pressure
32%
B
heating glycerol with oxalic acid at high temperature
32%
C
catalytic oxidation of ethane in presence of a catalyst
25%
D
heating lead formate in a current of hydrogen sulphide.
12%
Solution:
$( HCOO )_{2} Pb + H _{2} S \longrightarrow \underset{\text{ppt. Anhydrous formic acid}}{ PbS +2 HCOOH}$