Q.1.
Hydrogenation of C6H5CHOH−COOH over Rh−Al2O3 catalyst in methanol gives which of the following?
- a) C6H5CH2COOH
- b) C6H11CHOHCOOH
- c) C6H5CHOHCH2OH
- d) C6H11CH2COOH
Q.2.
In the anion HCOO− the two carbon-oxygen bonds are found to be of equal length. What is the reason for it?
- a) Electronic orbitals of carbon atom are hybridised
- b) The C = O bond is weaker than the C – O bond
- c) The anion HCOO− has two resonating structures
- d) The anion is obtained by removal of a proton form the acid molecule
Q.3.
In a set of the given reactions, acetic acid yielded a product C
- a) CH3−C-C2H5(OH)C6H5
- b) CH3CH(OH)C2H5
- c) CH3COC6H5
- d) CH3CH(OH)C6H5
Q.4.
Carboxylic acids are more acidic than phenol and alcohol because of which of the following?
- a) Intermolecular hydrogen bonding
- b) Formation of dimers
- c) Highly acidic hydrogen
- d) Resonance stabilization of their conjugate base
Q.5.
When propionic acid is treated with aqueous sodium bicarbonate CO2 is liberated. The ‘C’ of CO2 comes from which of the following?
- a) Methyl group
- b) Carboxylic acid group
- c) Methylene group
- d) Bicarbonate
Q.6.
The compound not soluble in acetic acid is which of the following?
- a) CaCO3
- b) CaO
- c) CaC2O4
- d) Ca(OH)2
Q.7.
Identify the wrong statement from the following?
- a) Salicylic acid’s a monobasic acid
- b) Methyl salicylate is an ester
- c) Salicylic acid gives violet colour with neutral ferric chloride as well as brisk effervescence with sodium bicarbonate
- d) Methyl salicylate does not occur in natural oils
Q.8.
When CH3COOH reacts with CH3−Mg−X, which of the following is formed?
- a) CH3COX is formed
- b) Hydrocarbon is formed
- c) Acetone is formed
- d) Alcohol is formed
Q.9.
Hydrolysis of an ester gives a carboxylic acid which on Kolbe’s electrolysis yields ethane. The ester is which of the following?
- a) Ethyl methonoate
- b) Methyl ethanoate
- c) Propylamine
- d) Ethylamine
Q.10.
Sulphonation of benzoic acid produces mainly which of the following?
- a) o-sulphobenzoic acid
- b) m-sulphobenzoic acid
- c) p-sulphobenzoic acid
- d) o- and p-sulphobenzoic acid