The increasing order of acidity is :

• CHCl₂COOH , CH₂ClCOOH , CH₃COOH

• CH₃COOH , CHCl₂COOH , CH₂ClCOOH

• CH₂BrCOOH , CH₂ClCOOH , CH₃COOH

• CH₂BrCOOH , CH₂ClCOOH , CHCl₂COOH

Cannizaro's reaction is exhibited by :

• HCHO

• CH₃CHO

• CH₃CH₂CHO

• CH₃CH₂CH₂CHO

Which of the following reaction will not produce ethylene glycol?

• 

• ClCH₂CH₂Cl $\underset{\mathrm{heat}}{\overset{{\mathrm{OH}}^{-}}{\to }}$

• HO-CH₂-CH₂-OCH₃ $\underset{\mathrm{heat}}{\overset{{\mathrm{OH}}^{-}}{\to }}$

• CH₂ = CH₂ $\underset{{\mathrm{KMnO}}_4}{\overset{\mathrm{alkaline}}{\to }}$

Assertion : Mixture of benzaldehyde and acetaldehyde in hot allkaline medium gives cinnamaldehyde.

Reason : Benzaldehyde is strong electrophile than acetaldehyde.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

126.

An aromatic compound C₇H₆Cl₂ (A), gives AgCl on boiling with alcoholic AgNO₂ solution and yields C,HOCI on treatment with sodium hydroxide. (A) on oxidation gives monochlorobenzoic acid. The compound (A) is:

• 

• 

• 

• 

Formic acid can be distinguished from acetic acid by its reaction with :

• NaHCO₃

• Tollen's reagent

• NaOH

• None of these

Cannizaro reaction is not given by :

• acetaldehyde

• formaldehyde

• benzaldehyde

• triethyl acetaldehyde

In the Rosenmund's reaction

RCOCl + H₂ $\stackrel{\mathrm{Pd}/{\mathrm{BaSO}}_4}{\to }$ RCHO + HCl

here BaSO₄

• promotes catalytic activity of Pd

• removes the HCl formed in the reaction

• deactivates Pd

• activates Pd

The product P is

• 

• 

• 

• None of these.