Question

the general formula CnH2nO2 could be for open chain​

Answer 1

General formula CnH2nO2 could be for open chain carboxylic acid.

MARK ME AS BRILLIANT.

Answer 2

Answer:

carboxylate group

Explanation:

CnH2nO2 can be the general formula for ester or carboxylate group

let n = 1

C1 H2 O2 =  HCOOH = formic acid.

n = 2

C2 H2 *2 O2 = CH3COOH = Ethanoic Acid.

This confirms that CnH2nO2  is the formula for carboxylate group.

In this way by putting the value of n on the general formula, you can find out the family of the given formula.