Gatterman Reaction

Q. The correct order of dehydration of following alcohol is:

1. $a<b<c<d$
2. $d>c>a>b$
3. $d>b>a>c$
4. $a>c>d>b$

Q.

How do you Convert $\mathrm{Benzene}$ to $\mathrm{Bromobenzene}$

Q. The correct order of dehydration of following alcohol is:

1. $a<b<c<d$
2. $d>c>a>b$
3. $d>b>a>c$
4. $a>c>d>b$

Q. Consider the following reaction sequence:

Which of the following option(s) is/are not correct regarding the above reaction sequence?

1. Q and S are the same compound
2. P gives a positive iodoform test
3. Both P and S on reduction with $LAH$ and then dehydration with conc. $H_{2}S{O}_4$ gives styrene
4. S on decarboxylation gives benzene

Q. (a) Identify X and Y in the following reaction sequence and also write the names of the two reactions involved:
$R-CON{H}_2\stackrel{B{r}_2/NaOH}{\to }X\stackrel{CHC{l}_3/KOH(alc.)}{\to }Y$
(b) Alkanamine is more basic than ammonia. Give reasons.

Q. Consider the Hofmann ammonolysis reaction:

1. $3>2>1>N{H}_3$
2. $N{H}_3>1>2>3$
3. $1>2>N{H}_3>3$
4. $1>N{H}_3>2>3$

Q. Consider the Hofmann ammonolysis reaction:

1. $N{H}_3>1>2>3$
2. $3>2>1>N{H}_3$
3. $1>2>N{H}_3>3$
4. $1>N{H}_3>2>3$

Q. What is the best way to identify the mechanism of a reaction? i.e. whether it is E1 E2 Sn1 or Sn2?

Q. Consider the following reaction sequence:

Which of the following option(s) is/are not correct regarding the above reaction sequence?

1. Q and S are the same compound
2. P gives a positive iodoform test
3. Both P and S on reduction with $LAH$ and then dehydration with conc. $H_{2}S{O}_4$ gives styrene
4. S on decarboxylation gives benzene

Q. Which of the following statements is/are correct about the following reactions?

1. path II is feasible.
2. path I is feasible.
3. PhCl cannot be trinitrated because CI and two $N{O}_2$ atoms deactivate the ring towards further SE reaction.
4. 2, 4-Dinitrophenol can be nitrated beacuse the two deactivating $N{O}_2$ groups prevent ring oxidation.

Q. Consider the Hofmann ammonolysis reaction:

1. $2>3>1>N{H}_3$
2. $2>1>3>N{H}_3$
3. $3>2>1>N{H}_3$
4. $N{H}_3>1>2>3$

Q. Which of the following reactions will give benzaldehyde?

1. 
2. 
3. 
4. 

Q. The process through conversion of 2, 3-dibromobutane to 2-butene with Zn dust takes place:

1. Dehydrogenation
2. Dehydrohalogenation
3. Dehalogenation
4. Denaturation

Q. An orange dye p-hydroxy azobenzene can be synthesized from benzene diazonium chloride by

1. Sandmeyer reaction
2. Gomberg reaction
3. Coupling reaction
4. Etard reaction
5. Gattermann reaction

Q. A reaction involving two different reactants can never be

1. Biomoleculer reaction
2. Second order reaction
3. First order reaction
4. Unimolecular reaction

Q. Which of the following reactions will give benzaldehyde?

1. 
2. 
3. 
4.