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A compound A of formula C₃H₆Cl₂ on reaction with alkali can give B of formula C₃H₆O or C of formula C₃H₄. B on oxidation gave a compound of the formula C₃H₇O₂. C with dilute H₂SO₄ containing Hg²⁺ ion gave D of formula C₃H₆O, which with bromine and NaOH gave the sodium salt of C₂H₄O₂. Then A is :
1. CH₃CH₂CHCl₂
2. CH₃CCl₂CH₃
3. CH₂ClCH₂CH₂Cl
4. CH₃CHClCH₂Cl
 

Compound (A), C₈H₉Br , gives a white precipitate when warmed with alcholic AgNO₃. Oxidation of (A) gives an acid (B), C₈H₆O₄. (B) easily forms anhydride on heating. Identify the compound (A).
1.
 
2.
 
3.
 
4.
 

In order to accomplish the following conversion, what reagent and conditions would be required?

1. Cold sodium hydroxide
2. Hot conc. sodium hydroxide
3. Potassium tertiary butoxide and heat
4. Hot water

 $\underset{hv}{\overset{{\mathrm{SO}}_2{\mathrm{Cl}}_2}{\to }}\left(\mathrm{A}\right)\stackrel{\mathrm{NBS}}{\to }\left(\mathrm{B}\right)\stackrel{\mathrm{KSH}}{\to }\left(\mathrm{C}\right)$, Product (C) is:

 

, the missing reagent is:-
(1) CF₃CO₃H
(2) H₂SO₄ 
(3) LAH
(4) NaBH₄

                 
(p-ethyl phenol) (p-methyl anisole) (p-ethyl benzyl alcohol)
Above compounds can be differentiated by using the reagent:-
(a) NaOH, Tollen's reagent, FeCl3
(b) CrO3, Tollen's reagent, FeCl3,
(c) Tollen's reagent, CrO3, FeCl3
(d) Na, Tollen's reagent, FeCl3
 
 

Give test to differentiate (Bromobenzene) Ph-Br and benzyl bromide (PhCH₂Br).
(1) (i) aq. KOH (ii) Na
(2) AgNO₃
(3) KMnO₄
(4) All these

Give test to differentiate 1,1-dichloroethane and 1, 2-dichloroethane:
1. 2,4-DNP then aq. KOH
2. aq. KOH then 2, 4-DNP
3. NaHSO₃
4. Lucas reagent

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?
(1) Chlorination, nitration, reduction
(2) Nitration, chlorination, reduction
(3) Nitration, reduction, chlorination
(4) Nitration, reduction, acylation, chlorination, hydrolysis

The appropriate reagent for the following transformation,
  is :
 
(1) Zn(Hg),HCl
(2) NH₂NH₂, OH^-
(3) H₂/Ni
(4) NaBH₄

Propene on reaction with diazomethane in presence of UV radiations gives:
(1) cyclopropane
(2) methyl cyclopropane
(3) butane
(4) butene

What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with two equivalents of metallic sodium in ether?
1. 
2. 
3. 
4. 
 
 

Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-
isomer?
1. Ozone
2. MnO₂
3. Aluminium isopropoxide
4. Acetone

In following reaction, find out X and Y.
$\mathrm{In} \mathrm{the} \mathrm{reaction},$
$\mathrm{H}-\mathrm{C}\equiv \mathrm{C}-\mathrm{H} \underset{\left(\mathrm{ii}\right){\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}}{\overset{\left(\mathrm{I}\right){\mathrm{NaNH}}_2/\mathrm{liq}.{\mathrm{NH}}_3}{\to }}\mathrm{X}$
$\mathrm{X}\underset{\left(\mathrm{ii}\right){\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}}{\overset{\left(\mathrm{i}\right){\mathrm{NaNH}}_2/\mathrm{liq}.{\mathrm{NH}}_3}{\to }}{\mathrm{Y}}_{}^{}$
1. X=2-butyne ; Y=3-hexyne
2. X=2-butyne ; Y=2-hexyne
3. X=1-butyne ; Y=2-hexyne
4. X=1-butyne ; Y=3-hexyne

In a reaction,

A is 
1. HgSO₄/H₂SO₄
2. Cu₂Cl₂
3. H₃PO₂ and H₂O
4. H⁺/H₂O

What is the product obtained in the following reaction?


 

The reaction of toluene with Cl₂ in presence of FeCl₃ gives 'X' and reaction in presence of
light gives 'Y'. Thus, 'X' and 'Y' are
1. X = Benzal chloride, Y = o-chlorotoluene
2. X = m-chlorotoluene, Y= p-chlorotoluene
3. X = o-and p-chlorotoluene, Y=trichloromethyl benzene
4. X = Benzyl chloride, Y = m-chlorotoluene

In a set of reactions, ethyl benzene yielded a product D.

Acetamide is treated with the following reagents separately. Which one of these would
yield methyl amine?
1. NaOH-Br₂
2. Sodalime
3. Hot conc. H₂SO₄
4. PCl₅

Consider the following reaction,

the product Z is:
1. CH₂=CH₂
2. CH₃CH₂-O-CH₂-CH₃
3. CH₃-CH₂-O-SO₃H
4. CH₃CH₂OH

In a set of reactions, propanoic acid yielded a compound D.
${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}\stackrel{{\mathrm{SOCl}}_2}{\to } \mathrm{B}\stackrel{{\mathrm{NH}}_3}{\to } \mathrm{C}\underset{{\mathrm{Br}}_2}{\overset{\mathrm{KOH}}{\to }} \mathrm{D}$
The structure of compound D would be:
1. CH₃CH₂CH₂NH₂
2. CH₃CH₂CONH₂
3. CH₃CH₂NHCH₃
4. CH₃CH₂NH₂