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

(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)  

When propane is reacted with conc. ${\mathrm{HNO}}_3$ at $400-500°\mathrm{C}$ the number of nitro alkanes obtained are 

1. 1                              2. 2

3. 3                              4. 4  

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

The intermediate during the addition of HCl to propene in the presence of peroxide is

1. ${\mathrm{CH}}_3\stackrel{*}{\mathrm{C}}{\mathrm{HCH}}_2\mathrm{Cl}$                     

2. ${\mathrm{CH}}_3\stackrel{+}{\mathrm{C}}{\mathrm{HCH}}_3$

3. ${\mathrm{CH}}_3{\mathrm{CH}}_2\stackrel{*}{{\mathrm{CH}}_2}$                       

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2\stackrel{+}{{\mathrm{CH}}_2}$

${\mathrm{CH}}_3\mathrm{Cl}\stackrel{\mathrm{Na}}{\to }$Gas A

${\mathrm{CH}}_2\mathrm{COONa}-{\mathrm{CH}}_2\mathrm{COONa}$$\underset{\mathrm{Electrolysis}}{\overset{\mathrm{Kolbe}\text{'}\mathrm{s}}{\to }}$Gas B

${\mathrm{Mg}}_2{\mathrm{C}}_3\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }$Gas C

Gas (A+B+C) $\underset{{\mathrm{Cu}}_2{\mathrm{Cl}}_2}{\overset{\mathrm{Ammoniacal}}{\to }}$

gas mixture $\underset{\mathrm{Alk}. {\mathrm{KMnO}}_4}{\overset{\mathrm{Cold} \mathrm{dil}}{\to }}$ Gas X

Gas X is same is

1. Gas A + Gas B                      2. Only Gas B

3. Gas B + Gas C                      4. Only Gas A

1. 3-Keto butanol

2. Butane-1,4-dial

3. 3-Oxo-butan-1-al

4. 2-Keto-butane-1,4-dial

$\stackrel{1\mathrm{eq}.\mathrm{NBS}}{\to }$ X$\stackrel{{\mathrm{PhO}}^{-}}{\to }$Y (major product)

The product Y is

The product (s) obtained via oxymercuration-dermercuration of butyne would be

1.                                2. 

3. +${\mathrm{CH}}_2\mathrm{O}$                    4.+ HCOOH

2-bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is- 

1. 2-Ethoxypentane               

2. Pent-1-ene

3. trans-pent-2-ene               

4. cis-Pent-2-ene

Which of these will not react with acetylene?

1. NaOH                                       

2. Amm. ${\mathrm{AgNO}}_3$

3. Na                                           

4. HCl