$\underset{∆}{\overset{{\mathrm{H}}^{+}}{\to }}$Possible products $\stackrel{{\mathrm{Br}}_2/{\mathrm{CCl}}_4}{\to }$(y) products

The number of possible products for x and y is:

(a) 2,4

(b) 3,5

(c) 3,6

(d) 3,4

Product (C) of the above reaction is :

1. 1,3-Hexadiene
2. 1,4-Pentadiene
3. 1,3-Butadiene
4. 1,3-Heptadiene

Which reagents are suitable to accomplish the mentioned conversion?

1. O₃/H₂O₂, HO^-/$∆$                               

2. HBr, alc. KOH, O₃, LiAlH₄, H⁺/$∆$

3. HBr, t-BuOK, O₃, KMnO₄, $∆$

4. HBr, alc. KOH, O₃, KMnO₄, $∆$

$\underset{0°\mathrm{C}}{\overset{{\mathrm{PCl}}_5}{\to }}\underset{70-80\%}{\left(\mathit{A}\right)}\underset{\left(2\right)<mspace\; width="1em"></mspace>{\mathrm{H}}^{\oplus }}{\overset{\left(1\right)<mspace\; width="1em"></mspace>3{\mathrm{NaNH}}_2,<mspace\; width="1em"></mspace>\mathrm{mineral}<mspace\; width="1em"></mspace>\mathrm{oil}}{\to }}\underset{46\%}{\left(B\right)}$; Product (B) is:

Product (K) of the above reaction is:

1. 

2. 
3. 

4. 

CH₃-CH₂-CH₂-C$\equiv$CH+LiHN₂$\to \left(\mathrm{A}\right)\stackrel{({\mathrm{CH}}_3{)}_2{\mathrm{SO}}_4}{\to }$(B)

Give the structural formula of compound (B):

(a) CH₃-(CH₂)₂-C$\equiv$C-SO₃H

(b) CH₃-(CH₂)₂-C$\equiv$C-CH₃

(c)  CH₃-(CH₂)₂-C$\equiv$C-CH₂-O-$\begin{array}{c}\stackrel{\mathrm{O}}{\parallel }\\ \mathrm{s}\\ \underset{\mathrm{O}}{\parallel }\end{array}$-H

(d) CH₃-CH₂-C$\equiv$C-CH₂

The reagents used for the following conversion is/are:

1.	(i) NaNH2 , (ii) CH3CHO
2.	(i) NaNH2 , (ii) CH3-CH2-CH2-Br
3.	(i) KOH, (ii) CH3-CH2-CH2-Br
4.

Which alkyne(s) will yield 3-ethylhexane upon catalytic hydrogenation?
 

1.		2.
3.		4.	All of the above

$\mathrm{Br}-{\left({\mathrm{CH}}_2\right)}_{12}-\mathrm{C}\equiv \mathrm{CH}<mspace\; width="1em"></mspace>\stackrel{{\mathrm{NaNH}}_2}{\to }<mspace\; width="1em"></mspace>\left(\mathrm{A}\right)<mspace\; width="1em"></mspace>\underset{\mathrm{Catalyst}}{\overset{\mathrm{Lindlar}}{\to }}<mspace\; width="1em"></mspace>\left(\mathrm{B}\right)$; Product (B) is :
1.

2.  
3. 
4. Br-(CH₂)₁₂-CH=CH  

Ph - C $\equiv \mathrm{CH}\underset{\mathrm{MeOH}}{\overset{{\mathrm{MeO}}^{-}}{\to }}$ Major product of the reaction is:

(a) 

(b) 

(c) Ph - C $\equiv$C-OMe

(d)