211.

Which of the following compounds will not undergo Friedel -Craft's reaction easily?

• Cumene

• Xylene

• Nitrobenzene

• Nitrobenzene

In the reaction,

• HgSO₄/H₂SO₄

• Cu₂Cl₂

• H₃PO₂ and H₂O

• H₃PO₂ and H₂O

Among the following compounds, the one that is most reactive towards electrophilic nitration is

• Benzoic acid

• Nitrobenzene

• toluene

• toluene

Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?

• NaNH₂

• HCl

• O₂

• O₂

Consider the reaction,
RCHO +NH₂NH₂ →RCH =N-NH₂
What sort of reaction is it?

• Electrophilic addition elimination reaction

• Free radical addition-elimination reaction

• Electrophilic substitution elimination reaction

• Electrophilic substitution elimination reaction

An organic compound (C₃H₉N) (A), when treated with nitrous acid, gave an alcohol and N₂ gas was evolved. (A) on warming with CHCl₃ and Caustic potash  gave  (C) which on reduction gave  iso-propyl methylamine predict the structure  of (A)

• 

• CH₃-CH₂ -NH -CH₃

• 
• 

What is the product obtained in the following reaction?

Method by which aniline cannot be prepared is 

• hydrolysis phenyl isocyanide with the acidic solution

• degradation of benzamide with bromine in alkaline solution

• reduction of nitrobenzene with H₂/Pd in ethanol

• reduction of nitrobenzene with H₂/Pd in ethanol

Which of the following compound is most basic?

The following reaction, 


is known by the name

• Friedel -Crafts reaction

• Perkins reaction

• Acetylation reaction

• Acetylation reaction