Correct4
Incorrect-1
Which of these will not react with acetylene?
{tex} \mathrm { NaOH } {/tex}
{tex}\mathrm{Ammonical\,}\mathrm{AgNO_3}{/tex}
{tex} \mathrm { Na } {/tex}
{tex} \mathrm { HCl } {/tex}
Correct4
Incorrect-1
What is the product when acetylene reacts with hypochlorous acid?
{tex} \mathrm { CH } _ { 3 } \mathrm { COCl } {/tex}
{tex} \mathrm { ClCH } _ { 2 } \mathrm { CHO } {/tex}
{tex} \mathrm { Cl } _ { 2 } \mathrm { CHCHO } {/tex}
{tex}\mathrm{ClCHCOOH}{/tex}
Correct4
Incorrect-1
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane. This alkane could be
pentane
isopentane
neopentane
propane
Correct4
Incorrect-1
2-Methylbutane on reacting with bromine in the presence of sunlight gives mainly
{tex} 1 {/tex} - bromo- {tex} 3 {/tex} -methylbutane
{tex} 2 {/tex} -bromo- {tex} 3 {/tex} -methylbutane
{tex} 2 {/tex} -bromo- {tex} 2 {/tex} -methylbutane
{tex} 1 {/tex} - bromo- {tex} 2 {/tex} -methylbutane
Correct4
Incorrect-1
Butene- 1 may be converted to butane by reaction with
{tex} \mathrm { Sn } - \mathrm { HCl } {/tex}
{tex} \mathrm { Zn } - \mathrm { Hg } {/tex}
{tex} \mathrm { Pd } / \mathrm { H } _ { 2 } {/tex}
{tex} \mathrm { Zn } - \mathrm { HCl } {/tex}
Correct4
Incorrect-1
Reaction of one molecule of HBr with one molecule of {tex} 1,3 - {/tex} butadiene at {tex} 40 ^ { \circ } \mathrm { C } {/tex} gives predominantly
1-bromo-2-butene under kinetically controlled conditions
3-bromobutene under thermodynamically controlled conditions
1 -bromo- 2 -butene under thermodynamically controlled conditions
3 -bromobutene under kinetically controlled conditions
Correct4
Incorrect-1
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
{tex} 2 {/tex} -methylpentane
{tex} 2,2 {/tex} -dimethylbutane
{tex} 2,3 {/tex} -dimethylbutane
n-hexane
Correct4
Incorrect-1
Acid catalyzed hydration of alkenes except ethene leads to the formation of
mixture of secondary and tertiary alcohols
mixture of primary and secondary alcohols
secondary or tertiary alcohol
primary alcohol
Correct4
Incorrect-1
Which types of isomerism is shown by {tex} 2,3 {/tex} -dichlorobutane?
Structural
Geometric
Optical
Diastereo
Correct4
Incorrect-1
The compound formed as a result of oxidation of ethyl benzene by {tex}KMnO_4{/tex} is
benzyl alcohol
benzophenone
acetophenone
benzoic acid.
Correct4
Incorrect-1
Which of the following reactions will yield {tex} 2,2 - {/tex} dibromopropane?
{tex} \mathrm { CH } _ { 3 } - \mathrm { CH } = \mathrm { CH } _ { 2 } + \mathrm { HBr } \rightarrow {/tex}
{tex} \mathrm { CH } _ { 3 } - \mathrm { C } \equiv \mathrm { CH } + 2 \mathrm { HBr } \rightarrow {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CHBr } + \mathrm { HBr } \rightarrow {/tex}
{tex} \mathrm { CH } \equiv \mathrm { CH } + 2 \mathrm { HBr } \rightarrow {/tex}
Correct4
Incorrect-1
The reaction of toluene with {tex} \mathrm { Cl } _ { 2 } {/tex} in presence of {tex} \mathrm { FeCl } _ { 3 } {/tex} gives predominantly
{tex} \mathrm { m } {/tex} -chlorobenzene
benzoyl chloride
benzyl chloride
{tex} o - {/tex} and {tex} \mathrm { p } {/tex} -chlorotoluene
Correct4
Incorrect-1
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated wth cuprous bromide. The reaction mixture so formed contans
mixture of {tex} o - {/tex} and {tex} p {/tex} -bromotoluenes
mixture of {tex} o - {/tex} and {tex} p {/tex} - dibromobenzenes
mixture of {tex} o - {/tex} and {tex} p {/tex} -bromoanilines
mixture of {tex} o - {/tex} and {tex} m {/tex} -bromotoluenes
Correct4
Incorrect-1
In the following sequence of reactions, the alkene affords the compound 'B'
{tex} \mathrm { CH } _ { 3 } - \mathrm { CH } = \mathrm { CH } - \mathrm { CH } _ { 3 } \stackrel { \mathrm { O } _ { 3 } } { \longrightarrow } \mathrm { A } \frac { \mathrm { H } _ { 2 } \mathrm { O } } { \mathrm { Zn } } \rightarrow \mathrm { B } {/tex}
The compound {tex} \mathrm { B } {/tex} is
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CHO } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { COCH } _ { 3 } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COCH } _ { 3 } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CHO } {/tex}
Correct4
Incorrect-1
The hydrocarbon which can react with sodium in liquid ammonia is
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { C } \equiv \mathrm { CCH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { C } \equiv \mathrm { CH } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CHCH } _ { 3 } {/tex}
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { C } \equiv \mathrm { CCH } _ { 2 } \mathrm { CH } _ { 3 } {/tex}
Correct4
Incorrect-1
The treatment of {tex} \mathrm { CH } _ { 3 } \mathrm { MgX } {/tex} with {tex} \mathrm { CH } _ { 3 } \mathrm { C } \equiv \mathrm { C } - \mathrm { H } {/tex} produces
Correct4
Incorrect-1
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is
propene
1-butene
2 -butene
ethene
Correct4
Incorrect-1
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of:
two ethylenic double bonds
a vinyl group
an isopropyl group
an acetylenic triple bond
Correct4
Incorrect-1
Which branched chain isomer of the hydrocarbon with molecular mass {tex}72\mathrm { u } {/tex} gives only one isomer of mono substituted alkyl halide?
Tertiary butyl chloride
Neopentane
Isohexane
Neohexane
Correct4
Incorrect-1
2- Hexyne gives trans- 2 -Hexene on treatment with:
{tex}Pt/H_2{/tex}
{tex} \mathrm { Li } / \mathrm { NH } _ { 3 } {/tex}
{tex} \mathrm { Pd } / \mathrm { BaSO } _ { 4 } {/tex}
{tex}Li AlH_4{/tex}
Correct4
Incorrect-1
Which compound would give {tex} 5 - {/tex} keto {tex} - 2 - {/tex} methylhexanal upon ozonolysis?
Correct4
Incorrect-1
The hottest region of Bunsen flame shown in the figure below is:
region 3
region 4
region 1
region 2
Correct4
Incorrect-1
At {tex}300 \mathrm { K } {/tex} and {tex} 1 \mathrm { atm } , 15 \mathrm { mL } {/tex} of a gaseous hydrocarbon requires {tex} 375\mathrm { mL } {/tex} air containing {tex}20 \% \mathrm { O } _ { 2 } {/tex} by volume for complete combustion. After combustion the gases occupy {tex}330 \mathrm { mL } {/tex} .
Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:
{tex} \mathrm { C } _ { 4 } \mathrm { H } _ { 8 } {/tex}
{tex} \mathrm { C } _ { 4 } \mathrm { H } _ { 10 } {/tex}
{tex} \mathrm { C } _ { 3 } \mathrm { H } _ { 6 } {/tex}
{tex} \mathrm { C } _ { 3 } \mathrm { H } _ { 8 } {/tex}
Correct4
Incorrect-1
The reaction of propene with {tex} \mathrm { HOCl } \left( \mathrm { Cl } _ { 2 } + \mathrm { H } _ { 2 } \mathrm { O } \right) {/tex} proceeds through the intermediate:
{tex} \mathrm { CH } _ { 3 } - \mathrm { CH } ( \mathrm { OH } ) - \mathrm { CH } _ { 2 } ^ { + } {/tex}
{tex} \mathrm { CH } _ { 3 } - \mathrm { CHCl } - \mathrm { CH } _ { 2 } ^ { + } {/tex}
{tex} \mathrm { CH } _ { 3 } - \mathrm { CH } ^ { + } - \mathrm { CH } _ { 2 } - \mathrm { OH } {/tex}
{tex} \mathrm { CH } _ { 3 } - \mathrm { CH } ^ { + } - \mathrm { CH } _ { 2 } - \mathrm { Cl } {/tex}
Correct4
Incorrect-1
Which of these will not react with acetylene?
{tex} \mathrm { NaOH } {/tex}
ammonical {tex}\mathrm {AgNO}_{3}{/tex}
{tex} \mathrm { Na } {/tex}
{tex} \mathrm { HCl } {/tex}
