But-2-ene exhibits cis-trans-isomerism due to

1. Rotation around C₂-C₃ double bond

2. Rotation around C₃-C₄ sigma bond

3. Rotation around C₁-C₂ bond

4. Restricted rotation around C=C bond

 The compound is an example:

1. Aromatic compound                 

2. Heterocyclic compound

3. Annulene                               

4. Xanthates

Compound ‘A’ and ‘B’ respectively

1. Both are Cis-butene-2

2. Cis-butene-2, Trans-butene-2

3. Both are Trans-butene-2

4. Trans-butene-2, Cis-butene-2

The compound ‘A’ is:

1.		2.
3.		4.	-

$C{H}_3$
$l$
$C{H}_3-CH-C{H}_3+C{l}_2\stackrel{h\nu }{\to }A\left(mojar\right)$
$(1 mole)$

The compound ‘A’ is

1. $C{H}_3$
$l$
$C{H}_3-CH-C{H}_2-Cl$

2. $C{H}_3$
$l$
$C{H}_3-C-C{H}_3$
$l$
$Cl$

3. Both (1) and (2)

4. Neither (1) nor (2)

What is the order of melting points for the isomeric pentanes?

1. n-Pentane > Isopentane > Neopentane

2. Neopentane > Isopentane > n-Pentane

3. Neopentane > n-Pentane > Isopentane

4. Isopentane > n-Pentane > Neopentane

How many halogen derivatives are possible for $C_2{H}_6$ ?

1. 2

2. 4

3. 6

4. 9

A hydrocarbon has molecular formula $C_8{H}_{12}$. In this hydrocarbon only one $H_2$ molecule can be added. On ozonolysis it gives symmetrical diketone. The hydrocarbon is

1.

2.

3.

4. All of the above

 In which of the following homolytic bond fission takes place.

1. Alkaline hydrolysis of ethyl chloride

2. Addition of HBr to double bond

3. Photochlorination of methane

4. Nitration of benzene

${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-\mathrm{CH}={\mathrm{CH}}_2+\mathrm{HBr}\to \left(\mathrm{Major}\right)$

The compound 'A' is 

1. ${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Br}$

2.  ${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-\underset{\hspace{0.17em}\mathrm{Br}}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_3$

3.  ${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\underset{|}{\stackrel{\mathrm{Br}}{\stackrel{|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

4.  $\underset{\hspace{0.17em}\mathrm{Br}}{\underset{|}{{\mathrm{CH}}_2}}-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$