41.

In the above sequence , II is :

• $\mathrm{\beta }$ - alanine

• $\mathrm{\alpha }$ - alanine

• ethylene diamine

• $\mathrm{\gamma }$ - amino butyric acid

In which of the following reactions ether does not form ?

• C₂H₅ONa + C₂H₅I

• C₂H₅ONa + (CH₃)₃CBr

• C₂H₅I + dry Ag₂O

• C₂H₅OH + H₂SO₄ (140^o C)

Among the following sweetner which one has the lowest sweetness value ?

• Alitame

• Aspartame

• Saccharine

• Sucralose

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

Amides are converted to amines by the following reaction :

• Perkin

• Claisen

• Hofmann

• Clemmensen

Reaction of ester with Grignard reagent give rise to :

• primary alcohol

• secondary alcohol

• tertiary alcohol

• ketone

The formula of nylon is :

• -[OC(CH2)₆-CONH-(CH2)4-NH]_n-

• -[OC(CH₂)₄-CONH-(CH₂)₆-NH]_n-

• -[OC(CH₂)₃-CONH-(CH₂)₆-NH]_n-

• [OC-(CH₂)₂-CONH-(CH₂)₆-NH]_n-

Two molecules of acetone in presence of dil. NaOH give the product :

• 4 - methyl - 2 - pentanone

• 4 - hydroxy - 2 - pentanal

• 3 - hydroxy isopropyl propanone

• 4 - hydroxy - 4 - methyl - 2 - pentanone

R-OH + SOCl₂ $\stackrel{\mathrm{pyridine}}{\to }$ R-Cl + SO₂ + HCl

Pyridine in the above reaction :

• catalyse the reaction

• used to dissolve alkyl chloride

• used to remove excess of SOCl₂

• None of the above

Which of the following has least boiling point ?

• Ethyl ether

• n - propyl chloride

• n - butyraldehyde

• n - butyl alcohol