Question 1 :
Which of the following has maximum boiling point [IIT-JEE 1986; MP PMT 1986; CPMT 1989]
Question 2 :
During the estimation of {tex} \mathrm { C } {/tex} and {tex} \mathrm { H } {/tex}, the {tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} produced is absorbed in
Question 3 :
Which one of the following class of compounds is obtained by polymerization of acetylene?
Question 4 :
Which of the following will be the final product when {tex}{{C}_{2}}{{H}_{2}}{/tex} reacts with HCl
Question 5 : In reaction sequence,molecule {tex}\mathrm{'M'}{/tex} and reagent {tex}\mathrm{'R'}{/tex} respectively are:<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5dfc695d8701466b65e5ec68"><br>
Question 6 :
A compound {tex}\mathrm{ ( X ) \left( C _ { 5 } H _ { 8 } \right) }{/tex} reacts with ammonical {tex}\mathrm{AgNO}_3{/tex}, to give a white precipitate, and on oxidation with hot alkaline {tex} \mathrm { KMnO } _ { 4 } {/tex} gives the acid, {tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CHCOOH } , {/tex} therefore {tex} \mathrm { X } {/tex} is -
Question 7 :
The number of chain isomers possible for the hydrocarbon {tex} \mathrm { C } _ { 5 } \mathrm { H } _ { 12 } {/tex} is
Question 8 :
When neo-pentyl bromide is subjected to Wurtz reaction, the product formed is
Question 9 : Which of the following is the predominant product in the reaction of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7de02c2a2ae2953d94d2b"> with propene?
Question 11 :
Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction?
Question 12 :
Using anhydrous {tex} \mathrm { AlCl } _ { 3 } {/tex} as catalyst, which one of the following reactions produces ethylbenzene (PhEt)?
Question 14 :
An unknown compound {tex}\mathrm {A}{/tex} has a molecular formula {tex} \mathrm {C _ { 4 } H _ { 6 }} , {/tex} when {tex} \mathrm A {/tex} is treated with an excess of {tex} \mathrm {B r} _ { 2 } , {/tex} a new substance {tex}\mathrm B {/tex} with formula {tex}\mathrm{ C _ { 4 } H _ { 6 } B r _ { 2 }} {/tex} is formed. A forms a white precipitate with ammonical silver nitrate solution. {tex}\mathrm{A}{/tex} may be
Question 16 :
In the commercial gasolines, the type of hydrocarbons which are more desirable is [CBSE PMT 1997; AFMC 1997]
Question 17 :
Which of the following statements is incorrect regarding dehydrohalogenation of alkenes?
Question 18 :
{tex} \mathrm { R } - \mathrm { CH } _ { 2 } - \mathrm { CCl } _ { 2 } - \mathrm { R } \stackrel { \text { Reagent } } { \longrightarrow } \mathrm { R } - \mathrm { C }\equiv\mathrm { C } - \mathrm { R } {/tex} The reagent is
Question 20 :
Which of the following does not give white precipitate with ammoniacal {tex}AgN{{O}_{3}}{/tex}
Question 21 : An alkene having molecular formula {tex} \mathrm { C } _ { 7 } \mathrm { H } _ { 14 } {/tex} was subjected to ozonolysis in the presence of zinc dust. An equimolar amount of the following two compounds was obtained,The IUPAC name of the alkene is<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5dfc67928701466b65e5ea52"><br>
Question 23 :
The number of {tex}\pi -\text{bonds}{/tex} in the product formed by passing acetylene through dilute sulphuric acid containing mercuric sulphate is [EAMCET 1997]
Question 24 :
The reaction of propene with HOCl proceeds via the addition of
Question 26 :
Which of the following compound will not give positive Lassaigne test for nitrogen?
Question 27 :
Which of the following would not give {tex}2{/tex} -phenylbutane as the major product in a Friedel- Crafts alkylation reaction on benzene ring?
Question 28 : The hydrocarbon which decolourizes alkaline <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7dd5a6f3020298ca14040"> solution, but does not give any precipitate with ammoniacal silver nitrate is:
Question 29 : In pyrrole the electron density is maximum on <br> <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5d675acf23c06254128710e9" />
Question 31 :
The reaction of toluene with {tex} \mathrm { Cl } _ { 2 } {/tex} in presence of {tex} \mathrm { FeCl } _ { 3 } {/tex} gives {tex} X {/tex} and reaction in presence of light gives {tex} Y . {/tex} Thus, {tex} X {/tex} and {tex} Y {/tex} are
Question 33 :
The most important method of preparation of hydrocarbons of lower carbon number is [CBSE PMT 1989]
Question 34 :
Aqueous solution of the following compound on electrolysis gives ethane [NCERT 1983; MP PET 1985; CPMT 1975, 79]
Question 36 :
What is the chief product obtained when n-butane is treated with bromine in the presence of light at {tex}{{130}^{o}}C{/tex} [IIT-JEE 1995]
Question 38 :
An unknown compound <b>'A'</b> has a molecular formula {tex}{{C}_{4}}{{H}_{6}}.{/tex} When <b>'A'</b> is treated with an excess of {tex}B{{r}_{2}}{/tex} a new substance <b>'B'</b> with formula {tex}{{C}_{4}}{{H}_{6}}B{{r}_{4}}{/tex} is formed. <b>'A'</b> forms a white precipitate with ammoniacal silver nitrate solution. <b>'A'</b> may be
Question 40 :
A liquid hydrocarbon can be converted to gaseous hydrocarbon by [CPMT 1980; MP PMT 2001]
Question 42 : Of the three isomeric {tex} \mathrm { C } _ { 3 } \mathrm { H } _ { 4 } {/tex} hydrocarbons shown below how many can exist with all carbon and hydrogen nuclei located in a single plane<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5dfc68ec8701466b65e5ebe3"><br>
Question 44 :
Acid catalyzed hydration of alkenes except ethene leads to the formation of
Question 45 :
When {tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CHCl } _ { 2 } {/tex} is treated with {tex} \mathrm { NaNH } _ { 2 } {/tex} , the product formed is
