Alcohols phenols ethers aldehydes ketones carboxylic acids preparation properties reactions and important tests - One Line Questions
1.
Which functional group is present in a ketone? —
-CO-
2.
Which functional group defines a carboxylic acid? —
-COOH
3.
Which functional group defines an alcohol? —
-OH
4.
Which functional group characterizes an aldehyde? —
-CHO
5.
What is the common name for methanal? —
Formaldehyde
6.
What is the product when acetaldehyde reacts with HCN? —
Acetaldehyde cyanohydrin
7.
What is the common name for propanone? —
Acetone
8.
The product of the iodoform test is a yellow precipitate of: —
CHI3
9.
The Kolbe reaction is used for the carboxylation of: —
Phenols
10.
What product is formed when a secondary alcohol is oxidized? —
Ketone
11.
The Clemmensen reduction is used to reduce: —
Aldehydes and ketones to alkanes
12.
Which type of compounds give a positive iodoform test? —
Ketones with at least one methyl group attached to the carbonyl carbon
13.
What is the Hell-Volhard-Zelinsky (HVZ) reaction used for? —
Alpha-halogenation of carboxylic acids
14.
Williamson ether synthesis involves the reaction between: —
An alkoxide and a primary alkyl halide
15.
Fehling's solution consists of two solutions: A and B. Solution A is: —
Aqueous solution of CuSO4
16.
What is the primary use of ethanol in industry? —
As a precursor for other chemicals
17.
The Reimer-Tiemann reaction is used to introduce an aldehyde group onto the ring of: —
Phenol
18.
The reaction of an aldehyde with sodium bisulfite forms a: —
Bisulfite addition product
19.
What is the common name for phenol? —
Carbolic acid
20.
What is the IUPAC name for CH3OCH3? —
Dimethyl ether
21.
Which of the following reactions is characteristic of phenols and not alcohols? —
Electrophilic aromatic substitution
22.
Which alcohol is known as wood alcohol? —
Methanol
23.
Which compound gives a positive test with sodium bicarbonate solution? —
Acetic acid
24.
The reaction of an aldehyde or ketone with a Grignard reagent followed by hydrolysis produces: —
Alcohol
25.
What is the product of esterification of a carboxylic acid with an alcohol in the presence of an acid catalyst? —
Ester
26.
What is the observation in Tollens' test when an aldehyde is present? —
Formation of a silver mirror
27.
What is the observation in Fehling's test when an aldehyde is present? —
Formation of a red precipitate of Cu2O
28.
What is the IUPAC name for CH3COOH? —
Acetic acid
29.
The Cannizzaro reaction is shown by aldehydes that: —
Lack alpha-hydrogens
30.
What is the IUPAC name for CH3CHO? —
Ethanal
31.
Which of the following alcohols is used as an antifreeze? —
Ethylene glycol
32.
What is the IUPAC name for CH3CH2OH? —
Ethanol
33.
The reaction of phenols with bromine water results in: —
Tribromophenol
34.
Which reaction is characteristic of aldehydes but not ketones? —
Oxidation by mild oxidizing agents
35.
Which of the following is a characteristic reaction of ethers? —
Cleavage by strong acids
36.
Which of the following is a method for preparing ethers? —
Dehydration of alcohols
37.
Which method is commonly used for the industrial preparation of ethanol? —
Fermentation of sugars
38.
What is the main product when phenol reacts with phosgene (COCl2)? —
Phenyl chloroformate
39.
Which type of alcohol has the hydroxyl group attached to a primary carbon atom? —
Primary alcohol
40.
Which alcohol reacts fastest with Lucas reagent? —
Tertiary alcohol
41.
Which of the following alcohols can be prepared by the reduction of a carboxylic acid? —
Primary alcohols
42.
What is the IUPAC name for CH3COCH3? —
Propanone
43.
Which of the following is an ether functional group? —
R-O-R'
44.
Phenols are more acidic than alcohols due to: —
Resonance stabilization of the phenoxide ion
45.
Tollens' reagent is an alkaline solution of: —
Ammoniacal silver nitrate
46.
Tertiary alcohols cannot be easily oxidized by mild oxidizing agents because: —
They lack a hydrogen atom on the carbon bearing the hydroxyl group
47.
What is the Lucas reagent used for? —
To distinguish between primary, secondary, and tertiary alcohols
48.
Which test can distinguish between an aldehyde and a ketone? —
Both Tollens' and Fehling's tests
49.
How are primary alcohols oxidized to aldehydes, and then further to carboxylic acids? —
Using strong oxidizing agents like KMnO4 or K2Cr2O7
50.
Which reagent is used in the Wolff-Kishner reduction? —
Hydrazine and strong base