Aldehydes Ketones And Carboxylic Acids Test

Aldehydes Ketones And Carboxylic Acids

This is aldehydes ketones and carboxylic acids Test-01 for CBSE class 12 Chemistry.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
IUPAC name of $CH_3CHO$ is
  • A
    None of the above
  • B
    Acetaldehyde
  • C
    Formaldehyde
  • D
    Ethanal
    Correct
2
Give IUPAC names of the following compound:
  • A
    2 – Methyl – 3 – bromoheptanal
  • B
    None of these
  • C
    2 – Methyl – 3 – bromoheptanaldehyde
  • D
    4 – Bromo – 3 – methylheptanal
    Correct
3
Give the name of the following compound:
Question 3 figure 1
  • A
    salicylaldehyde
  • B
    cinnamaldehyde
  • C
    None of these
  • D
    vanillin
    Correct
4
Give IUPAC names of the following compound:
Question 4 figure 1
  • A
    1 – Phenylpropan – 1 – one
    Correct
  • B
    Phenylpropan – 1 – one
  • C
    Both B and A
  • D
    None of these
5
The following compound is called
Question 5 figure 1
  • A
    4 – nitrobenzenecarbaldehyde
  • B
    None of these
  • C
    4 – nitrobenzaldehyde
  • D
    4 – nitrobenzenecarbaldehyde and 4 – nitrobenzaldehyde
    Correct
6
$CH_3$CH(O$CH_3$)CHO is called
  • A
    Methoxypropionaldehyde and 2 – Methoxypropanal
    Correct
  • B
    Methoxypropionaldehyde
  • C
    2 – Methoxypropanal
  • D
    None of these
7
The carbonyl carbon atom
  • A
    $sp^2$ – hybridised
  • B
    forms a π – bond with oxygen
  • C
    All of these
    Correct
  • D
    forms three sigma (σ) bonds
8
Prop – 2 – enal is called
  • A
    Acrolein
    Correct
  • B
    Phthaldehyde
  • C
    Veleraldehyde
  • D
    None of these
9
Ozonolysis of alkenes followed by reaction with zinc dust and water gives depending on the substitution pattern of the alkene
  • A
    aldehyde
  • B
    any of these
    Correct
  • C
    ketone
  • D
    a mixture of both aldehyde and ketone
10
Esters react with DIBAL – H to produce
  • A
    Ketones
  • B
    Aldehydes
    Correct
  • C
    None of these
  • D
    Carboxylic acids
11
Aldehydes are produced on reduction of the following by DIBAL – H
  • A
    esters
  • B
    Both nitriles and esters
    Correct
  • C
    none of these
  • D
    nitriles
12
The oxidation of toluene to benzoic acid can be stopped at the aldehyde stage. to give benzadehyde, The reagent used for the purpose is one of the following.
  • A
    Chromic oxide
  • B
    Chromyl chloride
    Correct
  • C
    Carbon monoxide and hydrogen chloride
  • D
    Chlorine
13
Aldehydes are prepared by reducing nitriles to corresponding imines with stannous chloride in the presence of hydrochloric acid. This reaction is called
  • A
    Friedel – Crafts reaction
  • B
    Stephen reaction
    Correct
  • C
    Gatterman – Koch reaction
  • D
    Etard reaction.
14
The oxidation of toluene to benzoic acid can be stopped at the aldehyde stage. The reaction is called
  • A
    Stephen reaction
  • B
    Etard reaction
    Correct
  • C
    Gatterman – Koch reaction
  • D
    Friedel – crafts reaction
15
Benzene gets converted to benzaldehyde by Gatterman – Koch reaction. The appropriate reagent for the conversion is
  • A
    Chromic oxide
  • B
    Carbon monoxide and hydrogen chloride
    Correct
  • C
    Chlorine
  • D
    Chromyl chloride