Pyrazole imidazole

Nitrogen present in pyrazole is

• Pyridine type

• Pyrrole type

• Imidazole type

• All

Pyrazole exhibit

• Tautomerism

• Hydrogen bonding

• Obeys huckles rule

• All

Pyrazole is synthesised from

• Pyrimidine

• Pyrrole

• Pyridine

• All

Pyrazole undergo electrophilic substitution at

• 1st position

• 4thposition

• 3rd

• 2nd

Pyrazole undergo iodination and form

• 4 iodo pyrazole

• 2 iodo pyrazole

• 1 iodopyrazole

• All

Alpha haloketone and amidine react and form

• Pyrazole

• IMidazole

• Pyrrole

• Furan

Imidazole act as

• Base catalyst

• Nucleophilic catalyst

• Electrophilic catalysr

• A and b

Imidazole is present in

• Ketaconazole

• Cimitidine

• Metranidazole

• All

Imidazole undergo halogenation in the presence of bromine ,sodium acetate and form

• 4 bromoimidazole

• Dibromoimidazole

• Tribromoimidazole

• None

Imidazole undergo electrophilic addition to nitrogen and form

• Imidazolium cation

• Substituted imidazole

• A and b

• None