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Organic Chemistry
Organic Chemistry Written Test
Quiz 1
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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
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