Carboxylic acids are a class of organic compounds characterized by the presence of a carboxyl functional group. This group consists of a carbonyl group (C=O) and a hydroxyl group (-OH) attached to the same carbon atom. The general formula for a carboxylic acid can be represented as \(RCOOH\), where '\(R\)' represents an alkyl group or a hydrogen atom.
Let's examine each option to determine which one correctly represents a carboxylic acid:
This formula represents an alcohol. The structure contains a hydroxyl (-OH) group attached to an alkyl chain (\(C_3H_7\)). It does not contain the characteristic carboxyl (-COOH) group. For example, \(C_3H_7OH\) could be propan-1-ol or propan-2-ol.
This formula represents an alkane, specifically propane. Alkanes are hydrocarbons with only single bonds and do not possess functional groups like carboxyl or hydroxyl.
This formula contains the essential carboxyl functional group, -COOH. The '\(C_2H_5\)' part represents an ethyl group attached to the carboxyl group. This compound is propanoic acid, a common example of a carboxylic acid.
This formula represents a ketone. It contains a carbonyl group (C=O) bonded to two other carbon atoms within the chain. The specific compound shown is propanone (acetone). Ketones are distinct from carboxylic acids.
This option is empty and therefore cannot be a correct chemical formula.
Based on the analysis, the formula that correctly represents a carboxylic acid is the one containing the -COOH group.
Therefore, the correct chemical formula for a carboxylic acid among the options provided is \(C_2H_5COOH\).
The handle of pressure cookers is made of plastic because it should be made non-conductor of heat. The plastic used here is the first man-made plastic, which is:
Match List-I with List-II and select the correct answer using the code given below the Lists:
List-I (Compound/Molecule) | List-II (Shape of Molecule) |
A. CH 3F | 1. Trigonal planar |
B. HCHO | 2. Tetrahedral |
C. HCN | 3. Trigonal pyramidal |
D. NH 3 | 4. Linear |
The x/monomers used for the synthesis of Nylon 6 is/are _________.
Consider the following chemical reaction: aFe 2O 3(s) + bCO(g) → cFe (s) + dCO 2
In the balanced chemical equation of the above, which of the following will be the values of the coefficients a, b, c and d respectively?Which one of the following polymers does not contain glucose units?
The PCl 5 molecule has trigonal bipyramidal structure. Therefore, the hybridization of p orbitals should be __________.
The correct order of octane number of butane, pentane, hexane and cyclohexane is
Methanol is toxic because
Which one of the following is known as cetane?
Which one of the following is not an allotrope of carbon?
The catalyst used in the manufacture of methyl alcohol from water gas is
A carbon compound when heated in excess of concentrated sulphuric acid at 443K gives ethene. The compound is an________.
The manmade fiber obtained by chemical treatment of wood pulp is _____.
Plastic is not related to which of the following
The Peroxyacetyl Nitrate (PAN) is: