Diazotization Titration: Principle, Reaction, Mechanism, Procedure and MCQ with Answer

Diazotization Titration :-

Diazotization Titration are used to determination of primary aromatic amine compound.

 Principle :-

Reaction are performed in ice both at temp. 0-5 c.

End point is determined by the starch iodine paper or by potentiometric method.

Mechanism :-

Procedure :-

preparation and standardization of 0.1 M NaNo2.

Take 7.5g of NaNo2 and dissolve 800ml of distilled water and finally make up the volume upto 1000 ml.

Standardized against sulphanilamide.

Take 0.3 g of sulphanilamide and dissolve in 2N HCL add 3g of kBr and titrate against prepare 0.1 M NaNo2 till the end point.

Application :-

It is used determination of alpha drug , sulphanilamide, chlorophenol, procaine etc.

MCQ

1. Which method are used to determination of primary amine ?

A. Diazotization Titration

B. Karl fischer titration

C. OFC

D. All of the above

2. Which temperature Is required to be performing Diazotization reaction ?

A. 25 to 30 c

B. O to 5 c

C. 10 to 15 c

D. All of the above

3. Which method is used to determination of end point of Diazotization Titration ?

A. Starch iodine paper

B. Potentiometric titration

C. A and B

D. None of this

4. Which method is used to determination of procaine ?

A. Diazotization Titration

B. Karl fischer titration

C. OFC

D. All of the above

5. How many grams of NaNO2 are dissolve in 800 ml distilled water ?

A. 6.5 g

B. 7.5 g

C . 6.0 g

D. 4.0 g

Answer key

1. A

2. B

3. C

4. A

5. B

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