Formation of Diazonium Salts

Q.
Identify the correct statement.

1. A is $C{H}_{3}C{H}_{2}N{O}_2$
2. B is a pseudonitrole
3. B gives red colour with an alkali
4. All of these are correct

Q. 92/200 Aniline and benzene diazonium chloride arechemically distinguished byBro/waterAq. AgNO3Both and H3Po2 (1) and (2)Solutionwhynot H3Po

Q. Given below are two statements

Statement I : Aniline is less basic than acetamide.
Statement II: In aniline, the lone pair of electrons on nitrogen atom is delocalise over benzene ring due to resonance and hence less available to a proton.


Choose the most appropriate option

1. Statement I is false but statement II is true
2. Both statement I annd statement II are false
3. Statement I is true but statement II is false
4. Both statement I and statement II are true.

Q.

Which gas is evolved during baking that makes the cake light and fluffy? Write a balanced reaction.

Q.

Explain alkyl and aryl groups?

Q. Among the following, the most basic compound is:

1. Benzylamine
2. Aniline
3. Acetanilide
4. p-Nitro aniline

Q. Which one of the following reactions will not yield phenol?

1. 
2. 
3. 
4. 

Q. Which of the following order is correct for the decreasing reactivity of ring monobromination of the following compounds?

1. I > II > III > IV
2. II > III > IV > I
3. I > III > II > IV
4. III > I > II > IV

Q. Among the following compounds nitrobenzene, benzene, aniline and phenol, the strongest basic behaviuor in acidic medium is exhibited by:

1. Phenol
2. Aniline
3. Nitrobenzene
4. Benzene

Q.

Why is Aluminium chloride a Lewis acid?

Q. Which of the following compound will be formed as major product when ethyl chloride reacts with $AgCN$ ?

1. Ethylisocyanide
2. Ethylcyanide
3. Both (a) and (b) will be formed in same quantities
4. Acetonitrile

Q.

Write the equation for the reaction Bromoethane and an aqueous solution of sodium hydroxide

Q.

Write short notes on the following:

(i) Carbylamine reaction

(ii) Diazotization

(iii) Hofmann's bromamide reaction

(iv) Coupling reaction

(v) Ammonolysis

(vi) Acetylation

(vii) Gabriel phthalimide synthesis.

Q. Assertion: A small amount of alcohol is added to chloroform bottles.
Reason: Alcohol acts as inhibitor for oxidation of chloroform. Also it reacts with $COC{l}_2$ to give harmless diethyl carbonate.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Benzamide on treatment with bromine in an aqueous or ethanolic solution of sodium hydroxide forms:

1. Phenol
2. Bromobenzene
3. Aniline
4. Benzoic acid

Q.

The diazonium salt of which of the following compounds will form a colored dye on reaction with β-Naphthol in $\mathrm{NaOH}$?

1. 

2. 

3. 

4. 

Q. Select the basic strength order of following molecules.
(I)
(II)(III)

1. 
   $III>II>I$
2. 
   $II>III>I$
3. 
   $I>III>II$
4. 
   $III>I>II$

Q.

The final major product of the following reaction is:

1. 

2. 

3. 

4. 

Q. A. Phenyl methanamine
B. N, N-Dimethylaniline
C. N-Methyl aniline
D. Benzenamine

Choose the correct order of basic nature of the above amines.

1. $A>B>C>D$
2. $A>C>B>D$
3. $D>B>C>A$
4. $D>C<B>A$

Q.

Give the chemical tests to distinguish between the following gases:

Ammonia and hydrogen chloride

Q. Which of the following compounds contains an amine group?

1. $C{H}_3-C{H}_2-C{H}_3$
2. $C{H}_{3}COOH$
3. $C{H}_3-O-C_3{H}_7$
4. $C{H}_3-C{H}_2-N{H}_2$

Q. Which of the following compound does not undergo diazotization reaction?

1. 
2. 
3. 
4. 

Q. To form alkane isonitrile, alkyl halide is reacted with:

1. $KCN$
2. $AgCN$
3. $HCN$
4. $N{H}_{4}CN$

Q.

Alkyl cyanides are isomeric with:

1. Isocyanides

2. Ethers

3. Nitroalkanes

4. Diazonium salts

Q.

An organic compound (${\mathrm{C}}_3{\mathrm{H}}_9\mathrm{N}$) (A) when treated with Nitrous acid, gave an alcohol and ${\mathrm{N}}_2$ gas was evolved. (A) on warming with ${\mathrm{CHCl}}_3$ and Caustic potash gave (C), which on reduction gave isopropylmethylamine. Predict the structure of (A).

Q.

Assertion (A): Both aromatic and aliphatic primary amines produce stable diazonium salts on diazotization

Reason (R): Aromatic diazonium salt exhibit resonance

1. A is true, R is false

2. A and R are true and R is the correct explanation of A

3. A and R are true and R is not the correct explanation of A

4. A is false, R is true

Q. The compound (Z) is ?

1. 
2. 
3. 
4. 

Q. Cyclobutylamine is treated with sodium nitrite and aqueous $HCl$ at $0-5^{\circ }C$. The products formed are:

1. 
2. 
3. 
4. 

Q. Acid anhydrides on reaction with primary amines give ____________. (i) amide (ii) imide (iii) secondary amine (iv) imine

Q. What will be the products of this reaction?

1. 
2. 
3. 
4.