Aldehydes, Ketones and Carboxylic Acids

α- hydroxy propanoic acid has ........ asymmetric carbon atoms. 

• 4

• 3

• 2

• 1

In Clemmensen's reduction, the catalyst used is 

• Zn- Hg + Conc HCl

• NH₂NH₂ + C₂H₅ONa

• PdCl₂ /H₂O

• (C₆H₅)₃P + C₂H₅ONa

The common names of the lower fatty acids are obtained from

• their parent hydrocarbon

• their reduction product

• the sources from which they are obtained

• IUPAC system

Aldol condensation product of acetone on dehydration gives

• but-2-enal

• 2-methylpent-3-en-4-one

• 4-hydroxy-4-methylpentan-2-one

• 4-methylpent-3-en-2-one

Decarboxylation of malonic acid gives

• CH₄

• CH₃COOH

• Both (a) and (b)

• None of the above

Which of the following statement is false?

• 40% solution HCHO is known as formalin

• HCHO is least reactive in its homologous series

• The boiling point of iso-vareladehyde is less than n-varelaldehyde

• The boiling point of ketones are higher than that of aldehydes

Which of the following acids does not contain -COOH group?

• Carbamic acid

• Barbituric acid

• Lactic acid

• Succinic acid

Identify the compound 'D' in above mentioned series of reactions.

The compound that yields only ketonic compound/s on ozonolysis is

• but-2-ene

• pent-2-ene

• 2, 3-dimethylbut-2-ene

• 2-methylbut-2-ene

R-C≡N + 2H $\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\left(\mathrm{i}\right) {\mathrm{SnCl}}_2/ \mathrm{dil}. \mathrm{HCl}}{\to }}$ RCHO + NH₄Cl, this reaction is known as

• Etard reaction

• Stephen reaction

• Hell-Volhard-Zelinsky reaction

• Balz-Schiemann reaction