Freidel Craft Alkylation Acylation

Q.

Major product formed during the reaction between isobutyl bromide and benzene in presence of anhydrous $AlC{l}_3$ is (Benzne )

1. isobutyl benzene

2. t- butyl benzene

3. n - butyl benzene

4. no reaction

Q.

Which of the following formulae represents an alkane?

1. C₅H₈

2. C₃H₆

3. C₄H₁₀

4. C₂₀H₅₀

Q.

n - hexane $\stackrel{X}{\to }$ 2 - methyl pentane+ 3 - methyl pentane. The name of the reaction and 'x' is

1. Isomerisation, anhydrous AlCl₃

2. Aromatisation, Cr₂O₃

3. Isomerisation, V₂O₅

4. Aromatisation, anhydrousAlCl₃

Q. 2 Consider the following Reaction SiCl4 + 3Ch3MgCl -> P (Compound with silicon) P + H2O ->Q + HCl 2Q -> -H20 S Select the correct statement about compound S. 1) S can show further removal of water 2) S has one Si-O-Si linkage 3) S is a long chain polymer 4) S is planar

Q. Product (C) is :

1. 
2. 
3. 
4. 

Q.

How would you convert the following compounds into benzene?

(i) Ethyne (ii) Ethene (iii) Hexane

Q. The function of anhydrous $AlC{l}_3$ in the Friedel-Craft's reaction is to

1. Absorb water
2. Absorb HCl
3. To produce electrophile
4. to produce nucleophile

Q. 37. The unsaturation number of benzene and C4H7N is? (Step by step)

Q. Match the example given in Column I with the name of the reaction in Column II.

	Column I (Example)		Column II (Reaction)
A		(i)	Friedel Crafts acylation
B		(ii)	HVZ reaction
C		(iii)	Aldol Condensation
D		(iv)	Cannizaro’s reaction
E		(v)	Rosenmund’s reduction
F		(vi)	Stephen’s reaction

Q.

Statement-1 : Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous $AlC{l}_3$ yields acetophenone and not poly substituted products.
Statement-2 : Acetophenone formed, poisons the catalyst preventing further reaction.

1. Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.
   

2. Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.
   

3. Statement-1 is true but Statement-2 is false.
   
   

4. Statement-1 is false but Statement-2 is true.

Q.

A compound which is not a constitution isomer ofis

1. 

2. 

3. 

4. 

Q. Friedel-Crafts alkylation is expected to proceed through a carbocation intermediate. What would be the alkylation product when benzene reacts with cyclopropyl chloride in the presence of $AlC{l}_3$?

1. 
2. 
3. 
4. 

Q.

Which is the structural isomer of

1. 

2. 

3. 

4. 

Q. Which of the following compound is most likely to follow E1cB mechanism when treated with $C_2{H}_{5}ONa$ in ethanol?

1. 
2. 
3. 
4. 

Q. Benezene reacts with $C{H}_{3}COCl$ in the presence of $AlC{l}_3$ to give

1. $C_6{H}_{5}Cl$
2. $C_6{H}_{5}COCl$
3. $C_6{H}_{5}C{H}_3$
4. $C_6{H}_{5}COC{H}_3$

Q. 12. Balance the equation in basic medium {Al+NO_3^-→ A(OH)_4^-+NH_3

Q. In the given reaction

the product P is :-

1. 
2. 
3. 
4. 

Q. So2 when it act as oxidizing agent then it reduce to for S^{-2}orS^0?