Aldehydes And Ketones Test

Result

Aldehydes And Ketones Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

The IUPAC name of crotonaldehyde is

A
butanal

B
prop-2-en-al

C
but-2-en-1-al

D
pentanal

Solution

CH₃-CH=CH-CHO is crotonaldehyde.
Question 2
1 / -0

Which among the following is Corey reagent?

A
LiAlH₄

B
C₅H₅NH⁺CrO₃Cl^-

C
DMS

D
FeSO₄, H₂O₂

Solution

Pyridinium chlorochromate in CH₂Cl₂ solvent is called Corey reagent.
It is a mild oxidizing agent.
Question 3
1 / -0

Unsaturated secondary alcohols can be converted to ketones by treating them with aluminium tert-butoxide in the presence of excess of acetone. Which is the oxidising agent in the process?

A
Acetone

B
Aluminium tert-butoxide

C
Secondary alcohol

D
The double bond in the unsaturated alcohol

Solution

Acetone acts as an oxidising agent and itself gets reduced to isopropyl alcohol. The process is called Oppenauer oxidation.
Question 4
1 / -0

A compound 'Z' having molecular formula C₅H₁₂O, on oxidation, yields a ketone having molecular formula C₅H₁₀O. Which of the following represents the structure of 'Z'?

A
CH₃CH₂ CH₂ CH₂ CH₂OH

B
CH₃CH₂ CH₂(OH) CH CH₂

C
(CH₃)₂CH CH₂ CH₂OH

D
CH₃CH₂ CH (CH₃) CH₂OH

Solution

Oxidation of secondary alcohols will result in ketones.