Organic Chemistry Questions and Answers – Benzene Diazonium Chloride – 1 | Organic Chemistry Multiple Choice Questions and Answers

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Questions
1 What is the general formula of Diazonium salt?
A RN2+X–
B RN+
C RXI
D RN2+HSO–2

Answer:RN2+X–
2 What is the known name of the given reaction?

C6H5N+2 + CuCl → C6H5Cl + N2 + Cu+

A Gattermanns reaction
B Sandmeyers reaction
C Dehydrogenation reaction
D Esterification reaction

Answer: Sandmeyers reaction
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3 What is the known name of the given reaction?

C6H5N+2 + CuX → C6H5X + N2 + Cu+

A Gattermanns reaction
B Sandmeyers reaction
C Dehydrogenation reaction
D Esterification reaction

Answer:Gattermanns reaction
4 What is the known name of the given reaction?

[C6H5N+2]Cl− + C6H6 → C6H5−C6H5 + N2 + HCl

A Gattermanns reaction
B Sandmeyers reaction
C Gomberg–Bachmann reaction
D Esterification reaction

Answer:Gomberg–Bachmann reaction
5 What is the known name of the given reaction?

[C6H5N+2]BF−4 → C6H5F + BF3 + N2

A Gattermanns reaction
B Sandmeyers reaction
C Dehydrogenation reaction
D Balz-Schiemann reaction

Answer:Balz-Schiemann reaction
6 What is the known name of the given reaction?

[C6H5N+2]Cl− + ArCH=CHCO2H → ArC=C−C6H5 + N2 + CO2 + HCl

A Gattermanns reaction
B Sandmeyers reaction
C Meerwein reaction
D Balz-Schiemann reaction

Answer:Gattermanns reaction
7 Benzene diazonium chloride when reacts with hypophosphorus acid produces which of the following compound?
A Benzene
B Phenyl phosphate
C Phenol
D Phenyl isocyanide

Answer:Benzene
8 p-amino azo benzene is obtained by treating diazonium chloride with which of the following compound?
A Benzene
B Aniline
C Phenol
D Benzoic acid

Answer:Aniline
9 When hypophosphorous acid is treated with diazonium salts, it is reduced to which of the following compound?
A Arene
B Methane
C Ethyl alcohol
D Amines

Answer:Arene
10 Which of the following amine will form stable diazonium salt at 273-283 K?
A C6H5NH2
B C6H5N(CH3)2
C C2H5NH2
D C6H5CH2NH2

Answer:C6H5NH2
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