Question

Dry distillation of calcium formate and calcium acetate mainly gives
A. HCHO
B. $C{{H}_{3}}CHO$
C. \[C{{H}_{3}}COC{{H}_{3}}\]
D. None of the above

Answer 1

Hint: we should know that dry distillation is the process of heating solid materials to produce gaseous products (which may condense into liquids or solids).

Complete step by step answer:
When we heat the mixture of calcium formate and the calcium acetate it gives acetaldehyde.
 \[Ca{{(OCOC{{H}_{3}})}_{2}}+Ca{{(OCOH)}_{2}}\to 2C{{H}_{3}}CHO+2CaC{{O}_{3}}\]
As shown in the above reaction it gives acetaldehyde as the main product.
Calcium acetate on dry distillation gives Acetone.
Calcium formate on dry distillation gives Formaldehyde.
A mixture of calcium formate and calcium acetate on dry distillation gives Acetaldehyde
Additional information:
We should know that calcium acetate is a chemical compound which is a calcium salt of acetic acid. We can prepare calcium acetate can be prepared by soaking calcium carbonate (found in eggshells, or in common carbonate rocks such as limestone or marble) or hydrated lime in vinegar. Calcium acetate is used as a food additive, as a stabilizer, buffer and sequestrant.
Calcium formate is the calcium salt of formic acid. We also know that calcium formate is stable at room temperature, is inflammable and forms orthorhombic crystals. The mineral form is very rare and called formicaite, and is known from a few boron deposits. Calcium formate is used as a masking agent in the chrome tanning of leather. Calcium formate in tannage formulation promotes faster, more efficient leather penetration of the chrome. Calcium formate can also be used as a replacement for formic acid in the pickling operation.
Note:
We should know that acetaldehyde is a flammable, colourless liquid with a pungent, fruity odour. Green plants produce it as they break down their food, and it is also found naturally in ripe fruit, coffee, and bread. Formaldehyde, acetaldehyde and other aldehydes are produced when alcohols are oxidised. At high concentrations in an enclosed space, formaldehyde can be a significant respiratory irritant causing nose bleeds, respiratory distress, lung disease, and persistent headaches. Acetaldehyde, which is produced in the body by alcohol drinkers and found in the mouths of smokers and those with poor oral hygiene, is carcinogenic and mutagenic.