1. The oxygen atom in a carbonyl group is _____ the carbon atom. more electroneg
ID: 535476 • Letter: 1
Question
1.
The oxygen atom in a carbonyl group is _____ the carbon atom.
more electronegative than
identical in electronegativity to
less electronegative than
more soluble than
2.
Which of these statement is correct about the C=O properties?
The CO bond is shorter but weaker than CC bond in alkenes
The CO bond is shorter and stronger than CC bond
The CO bond is longer but stronger than CC bond in alkenes
The CC bond is shorter and stronger than CO bond
3.
Acetals are compounds produced by the reaction of any aldehyde with:
One Molecule of Acid
One Molecule of Alcohol
Two Molecules of Alcohols
Two Molecules of Aldehydes
4.
What is the IUPAC name for Acetone?
Propan-2-ol
2-propanone
Propanal
Butan-2-one
5.
Identify the compounds that NaBH4 reduces
Aldehydes & ketones
Alkenes and Alkynes
Ketones and Ethers
Aldehydes and Esters
more electronegative than
identical in electronegativity to
less electronegative than
more soluble than
2.
Which of these statement is correct about the C=O properties?
The CO bond is shorter but weaker than CC bond in alkenes
The CO bond is shorter and stronger than CC bond
The CO bond is longer but stronger than CC bond in alkenes
The CC bond is shorter and stronger than CO bond
3.
Acetals are compounds produced by the reaction of any aldehyde with:
One Molecule of Acid
One Molecule of Alcohol
Two Molecules of Alcohols
Two Molecules of Aldehydes
4.
What is the IUPAC name for Acetone?
Propan-2-ol
2-propanone
Propanal
Butan-2-one
5.
Identify the compounds that NaBH4 reduces
Aldehydes & ketones
Alkenes and Alkynes
Ketones and Ethers
Aldehydes and Esters
Explanation / Answer
Ans:
1) option A (Electronegativity of oxygen is more than carbon)
2) Option B (C=O bond short and strong)
3) Option C (two moles of alcohol)
EXAMPLE: CH3-CO-CH3 + 2R-OH -----> CH3-C(OR)2-CH3
4) option B (2-propanone)
5) Option A (aldehydes and ketones reduced by NaBH4 and gives alcohol)
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