In the Hofmann bromamide degradation reaction, the number of moles of NaOH and Br₂ used per mole of amine produced are:

• Four moles of NaOH and two moles of Br₂

• Two moles of NaOH and two moles of Br₂

• Four moles of NaOH and one mole of Br₂

• Four moles of NaOH and one mole of Br₂

In the reaction,


The product E is

3.

On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is

• an alkanol

• an alkaneodiol

• an alkyl cyanide 

• an alkyl cyanide 

Considering the basic strength of amines in aqueous solution, which one has the smallest pK_b value?

• (CH₃)₂NH

• CH3NH2

• (CH₃)₃N

• (CH₃)₃N

A compound with molecular mass 180 is acylated with CH3COCl to get a compound with molecular mass 390. The number of amino groups presents per molecule of the former compound is 

• 2

• 5

• 4

• 4

An organic compound A upon reacting with NH₃ gives B. On heating B gives C. C in presence of KOH reacts with Br₂ to give CH₃CH₂NH₂. A is

• CH₃COOH

• CH₃CH₂CH₂COOH

• 
• 

Ortho–Nitrophenol is less soluble in water than p– and m– Nitrophenols because

• o–Nitrophenol is more volatile in steam than those of m – and p–isomers

• o–Nitrophenol shows Intramolecular H–bonding

• o–Nitrophenol shows Intermolecular H–bonding

• o–Nitrophenol shows Intermolecular H–bonding

In the chemical reactions,


the compounds 'A' and 'B' respectively are

• nitrobenzene and fluorobenzene

• phenol and benzene

• benzene diazonium chloride and flurobenzene. 

• benzene diazonium chloride and flurobenzene. 

Which of the following compounds will the significant amount of meta product during mono-nitration reaction?

The hydrocarbon which can react with sodium in liquid ammonia is

• CH₃CH₂CH₂C≡CCH₂CH₂CH₃ 

• CH₃CH₂C≡CH

• CH₃CH=CHCH₃

• CH₃CH=CHCH₃