Which alkyne yields butanoic acid (CH₃CH₂CH₂CO₂H) as the only organic product on treatment with ozone followed by the hydrolysis?

1. 1-Butyne             

2. 4-Octyne               

3. 1-Pentyne               

4. 2-Hexyne

The degree of unsaturation in compound (A) is -

(1) 7                       

(2) 8                       

(3) 9                             

(4) 10

For the given compounds, the correct order of rate of EASR (electrophilic aromatic substitution reaction) is:

1.		2.
3.		4.

1. c > b > a > d

2. c > d > a > b

3. a > b > c > d

4. c> d> b > a

The major product formed in the reaction is:

1. 
2. 
3. 
4. 

Rank the following reactions A, B and C in order of increasing rate,

(A) 
(B)
(C)

1. B>A>C
2. B>C>A
3. A>B>C
4. A>C>B

Identify the position where E.A.S. can take place.
1. 1
2. 2
4. 3
4. 4

The rate of nitration will be:

(a) a>b>c

(b) a>c>b

(c) a=b=c

(d) c>a>b

 + HO^- $\to$ (A);      Product (A) of the given reaction is:  

      (2 mole)       (4 mole)   (major)

Which of the following compounds is the slowest to react with nitrosonium ion (NO⁺)?
1. 

2. 

3. 

4. 

The final product in the above sequence of reactions is-

1.
2.
3.
4.