Home
Class 11
CHEMISTRY
A mixture of formic acid and oxalic acid...

A mixture of formic acid and oxalic acid is heated with conc. `H_2SO_4` . The gas produced is collected and treated with `KOH` solution where the volume decreases by 1/6th. The molar ratio of two acids (formic acid/oxalic acid) in the original mixuture is:
(a) `4:1`
(b) `1:4`
(c) `2:1`
(d) `1:2`

Text Solution

Verified by Experts

Let `x` mol of `HCOOH` and y mole of `(COOH)_2`
`underset(x)HCOOHoverset(H_2SO_4)toH_2O+underset(x)CO`
`underset(y)(COOH)_2overset(H_2SO_4)toH_2O+underset(y)CO+underset(y)CO_2`
total mol of `(CO+CO_2)=x+2y`
Total mol of `CO_2=y`
Accordig to the question,
`(x+2y)xx(1)/(6)=y` `therefore(x)/(y)=4:1`
Alternatively
Mol fraction of `CO_2=(y)/(x+2y)=(1)/(6)`
`(x)/(y)=4:1`
Promotional Banner

Topper's Solved these Questions

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise SOLVED EXAMPLES|17 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Subjective Type|11 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Exercises (Archives )Subjective|4 Videos

  • REDOX REACTIONS

    CENGAGE CHEMISTRY|Exercise Archives (Integers)|1 Videos

Similar Questions

Explore conceptually related problems

A mixture of formic acid and oxalic acid is heated with conc. H_(2)SO_(4) . The gas producted is collected and treated with KOH solution, whereby the volume decrease by 1//6th . The molar ratio of the two acids (formic acid/oxalic acid) is

A mixture of formic acid and oxalic acid is heated with conc H_2SO_4 . The gas produced is collected and treated with KOH solution, where the volume decreases by (1)/(6) The molar ratio of the two acids (formic acid/oxalic acid) in the original is (a). 4:1 (b). 1:4 (c). 2:1 (d). 1:2

When formic acid or oxalic acid is treated with conc. H_(2)SO_(4) , the gas evolved is

Oxalic acid when heated with conc. H_2 SO_4 it gives out

A mixture of HCOOH and H_(2)C_(2)O_(4) is heated with conc. H_(2)SO_(4) . The gas produced is collected and on treating with KOH solution the volume of the gas decreases by 1//6th . Calculate molar ratio of two acids in original mixure.

A mixture of H_2C_2O_4 and HCOOH is heated with conc H_2SO_4 . The gas produced is collected and on treatment with KOH solution, the volume of the gas decreases by (1)/(6) calculate the molar ratio of the two acids in the original mixture.

When oxalic acid is heated with concentrated H_(2) SO_(4) it produces