An organic compound ‘A’ of molecular formula C2H4O2 turns blue litmus red and gives brisk effervescence with NaHCO3. Identify ‘A’ and give chemical reaction.
Answers
Given that A turns blue litmus red. So A is acidic in nature.
Brisk effervescence with NaHCO3 indicates carbon dioxide as one of the products.
The molecular formula of A contains 2 oxygen atoms. So the compound is likely to be a carboxylic acid (general molecular formula is CnH2nO2)
Here n=2 and hence the compound A is ethanoic acid. The reaction is given by:
CH3COOH + NaHCO3→ CH3COONa + H2O + CO2
Acetic acid (CH3COOH)
Explanation:
As the given organic compound turns blue litmus red, it must be acidic in nature. So A is an acid.
An acid gives brisk effervescence with NaHCO3 when carbon dioxide is liberated.
The molecular formula of A contains 2 oxygen atoms. So the compound would be a carboxylic acid with empirical formula is CnH2nO2.
Given A is C2H4O2, so n is 2. So the compund A is ethanoic acid or acetic acid with chemical formula CH3COOH.
CH3COOH + NaHCO3 → CH3COONa + H2O + CO2