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Aldehydes, Ketones and Carboxylic Acids

Short Answer Type

171. Give name of the reagents to bring about the following transformation:
Cyclohexanol to cyclohexanone

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172. Give name of the reagents to bring about the following transformation:
p-Fluorotoluene to p-fluorobenzaldehyde

214 Views

173. Give name of the reagents to bring about the following transformation:
Ethane nitrile to propanal

170 Views

174. Give name of the reagents to bring about the following transformation:
Allyl alcohol to propanal

155 Views

175. Give name of the reagents to bring about the following transformation:
But-2-ene to ethanal.

202 Views

176. Arrange the following compounds in the increasing order of their boiling points:

CH₃CH₂CH₂CHO, CH₃CH₂CH₂CH₂OH, H₅C₂—O—C₂H₅, CH₃CH₂CH₂CH₂CH₃.

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177. Discuss the bonding of the carbonyl group ?

The carbonyl carbon atom is sp² -hybridised and forms three sigma bond. The fourth valence electron of carbon remains in its p-orbital and forms pi-bond with oxygen by overlapping with p- orbital of an oxygen. Also, the oxygen atom also has two non bonding electron pairs. Thus the carbonyl carbon and the three atoms attached to it lie in the same plane and the pi-electron is above and below this plane. The bond angle are approximately 120⁰.