Which reagent distinguish propyne and propene?

1. Alkaline ${\mathrm{KMnO}}_4$

2. ${\mathrm{Cu}}_2{\mathrm{Cl}}_2$ + ${\mathrm{NH}}_4\mathrm{Cl}$

3. ${\mathrm{Br}}_2$ water

4. ${\mathrm{Cu}}_2{\mathrm{Cl}}_2$ + ${\mathrm{NH}}_4\mathrm{OH}$

$\mathrm{CH}\equiv \mathrm{CH}\stackrel{{\mathrm{O}}_3/\mathrm{NaOH}}{\to }$X$\stackrel{\mathrm{Zn}/{\mathrm{CH}}_3\mathrm{COOH}}{\to }$Y

Y is:

1.                      2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

3. ${\mathrm{CH}}_3\mathrm{COOH}$                       4. ${\mathrm{CH}}_3\mathrm{OH}$

The alkene among the following that has the smallest heat of hydrogenation is-

1. ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_3$

2. ${\left({\mathrm{CH}}_3\right)}_2\mathrm{C}=\mathrm{CH}-{\mathrm{CH}}_3$

3. ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

4. ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}{\left({\mathrm{CH}}_3\right)}_2$

Which of the following alkanes will give the maximum number of isomers when a monochloro-substituted product is obtained?

1.		2.
3.	${}_{}$ \(\mathrm{CH_4}\)	4.

The correct order of relative rates of hydrogenation of alkenes is:

1. Ethylene > propene > 2-butene > 2-methyl-2-butene

2. 2-methyl-2-butene > 2-butene > Propene > Ethylene

3. 2-butene > propene > ethylene > 2-methyl-2-butene

4. Propene > 2-butene > ethylene > 2-methyl-2-butene

$\stackrel{\mathrm{NBS}}{\to }$ Products formed are   Products formed are

(A)                 (B)

(C)                        (D) 
 

(A)		(B)
(C)		(D)

1. (A) and (B) only                        2. (A) and (C) only 

3. (B) and (C) only                        4. (A), (B), (C) and (D)  

An unsaturated hydrocarbon on complete hydrogenation gives 1-isopropyl-3 methylcyclohexane, after ozonolysis it gives one mole of formaldehyde, one mole of acetone and one mole of 2,4-Dioxohexanedial. The possible structure\s of the hydrocarbon may be

1.  

2.  

3.  

4. 

Which one of the following reactions is not possible?

1. CH₃COONa + HCI → CH₃COOH + NaCI

2. CH₃–SO₃H + → CH₃SONa + 

3.  + PhONa → PhOH + 

4. + NaNH₂→  + NH₃ 

Observe the following sequence of reactions.

The product R is:

1.
2.
3.
4.

'X' is :

(1)
(2)
(3)	Both
(4)	None of these