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has configuration
(1) R, R
(2) S, S
(3) R, S
(4) Can't be predicted

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 these

How many halogen derivatives are possible for $C_6{H}_6$?
(1) 2
(2) 4
(3) 6
(4) 9

The order of melting point for isomeric pentanes is
(1) n-pentane > Isopentane > Neopentane
(2) Neopentane > Isopentane > n-pentane
(3) Neopentane > n-pentane > Isopentane
(4) Isopentane > n-pentane > Neopentane

Which one of the following compounds can be used to distinguish propyne from propene?
(1) Aqueous $KMn{O}_4$
(2) Dilute $H_{2}S{O}_4$
(3) $B{r}_2$ water
(4) Ammonical $AgN{O}_3$

The compound 'A' is
(1) 

(2)

(3) Both (1) and (2)
(4) Neither (1) nor (2)

the compound 'A' is
(1) 

(2)

(3)

(4)

${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-\mathrm{OH}\underset{160-170°\mathrm{C}}{\overset{\mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }} \mathrm{A}\left(\mathrm{Major}\right)$
the compound 'A' is
1. $C{H}_3$
$l$
$C{H}_3-C=CH-C{H}_3$
2. $C{H}_3$
$l$
$C{H}_3-CH-CH=C{H}_2$
3. $C{H}_3$
$l$
$C{H}_2=C-C{H}_2-C{H}_3$
4. No reaction

$C{H}_3-CH-C{H}_2-C{H}_3\stackrel{{(CH}_{}}{\to }$₃)3C-OKA (Major)
the compound 'A' is
(1) $C{H}_2=CH-C{H}_2-C{H}_3$
(2) $C{H}_3-CH=CH-C{H}_3$
(3) $$\begin{gathered} C{H}_3 \\ l \\ C{H}_2=C-C{H}_3 \end{gathered}$$
(4) No reaction

Which compound is most reactive towards electrophilic substitution reaction?
1. 
 
2. 
 
3. 
 
4. 
 

In the nitrating mixture $(H_{2}S{O}_4 and HN{O}_3), HN{O}_3$ acts as
1. Acid
2. Base
3. Acid as well as base
4. Neither acid nor base

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

${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-\mathrm{CH}={\mathrm{CH}}_2+\mathrm{HBr}\to \left(\mathrm{Major}\right)$
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.  $\underset{\hspace{0.17em}\mathrm{Br}}{\underset{|}{{\mathrm{CH}}_2}}-\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

'A' is
(1) 

(2)

(3)

(4)

 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