Aldehydes can be oxidised by:

• Tollen's reagent

• Fehling's solution

• Benedict solution

• All of these

When CH₂=CH-COOH is reduced with LiAlH₄, the compound obtained will be

• CH₃-CH₂-COOH

• CH₂=CH-CH₂OH
  

• CH₃-CH₂-CH₂OH

• CH₃-CH₂-CHO

Consider the acidity of the carboxylic acids

(i) PhCOOH

(ii) o-NO₂C₆H₄COOH

(iii) p-NO₂C₆H₄COOH

(iv) m-NO₂C₆H₄COOH

Which of the following order is correct?

• (i) > (ii) > (iii) > (iv)

• (ii) > (iv) > (iii) > (i)

• (ii) > (iv) > (i) > (iii)

• (ii) > (iii) > (iv) > (i)

In a set of the given reactions, acetic acid yielded a product C.

CH₃COOH + PCl₅ → A

A $\underset{\mathrm{anhy}. {\mathrm{AlCl}}_3}{\overset{{\mathrm{C}}_6{\mathrm{H}}_6}{\to }} \mathrm{B} \underset{\mathrm{ether}}{\overset{{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{MgBr}}{\to }}$ C

Product C would be

• CH₃CH(OH)C₆H₅

• CH₃-$\stackrel{{\mathrm{C}}_2{\mathrm{H}}_5}{\stackrel{|}{\mathrm{C}}}$(OH)C₆H₅

• CH₃CH(OH)C₂H₅

• CH₃COC₆H₅

Isomers of propionic acid are

• HCOOC₂H₅ and CH₃COOCH₃

• HCOOC₂H₅ and C₃H₇COOH

• CH₃COOCH₃ and C₃H₇OH

• C₃H₇OH and CH₃COCH₃

816.

Metamers of ethyl propionate are

• C₄H₉COOH and HCOOC₄H₉

• C₄H₉COOH and CH₃COOC₃H₇

• CH₃COOCH₃ and CH₃COOC₃H₇

• CH₃COOC₃H₇ and C₃H₇COOCH₃

What is the correct IUPAC name of

• 4-methoxy-2-nitrobenzaldehyde

• 4-formyl-3-nitro anisole

• 4-methoxy-6-nitrobenzaldehyde

• 2-formyl-5-methoxy nitrobenzene

2-pentanone and 3-pentanone can be distinguished by :

• Cannizaro's reaction

• Aldol condesation

• Iodoform reaction

• Clemmensen's reduction

The acid which contains the aldehyde group is:

• acetic acid

• formic acid

• benzoic acid

• propionic acid

Sour taste of lemon is due to the presence of:

• citric acid

• acetic acid

• oxalic acid

• None of these