Anhydrous formic acid cannot be obtained from fractional distillation of aqueous HCOOH because

Question

Anhydrous formic acid cannot be obtained from fractional distillation of aqueous HCOOH because (A) it forms complex with water (B) its boiling point is 373.4 K (C) it is soluble in water (D) None of the above

Tardigrade Admin · Accepted Answer

Formic acid forms azeotropic mixture with water hence it is not separated by fractional distillation. Boiling point of HCOOH is approximately equal to boiling point of H2O .

Q. Anhydrous formic acid cannot be obtained from fractional distillation of aqueous $H COO H$ because

it forms complex with water

its boiling point is 373.4 K

it is soluble in water

None of the above

Formic acid forms azeotropic mixture with water hence it is not separated by fractional distillation. Boiling point of $H COO H$ is approximately equal to boiling point of $H_{2} O$ .

Q. Anhydrous formic acid cannot be obtained from fractional distillation of aqueous HCOOH because