Question 1 :
Aryl halide is less reactive than alkyl halide towards nucleophilic substitution because
Question 3 :
During dehydration of alcohols to alkenes by heating with concentrated H<sub>2</sub>SO<sub>4</sub> the<br>initiation step is<br>
Question 4 : Tertiary alkyl halides are practically inert to substitution by <img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e79a3d1ced10523befeea4d' height='21' width='29' >mechanism because.<br>
Question 7 :
Which of the following compound will make precipitate most readily with {tex} \mathrm{A g N O _ { 3 }} {/tex}
Question 10 :
Which of the following compounds gives trichloromethane on distilling with bleaching powder
Question 12 :
Which of the following is known as freon which is used as a refrigerant
Question 13 :
Alkyl halide react with an alchoholic solution of ammonia to give a mixture of<br>
Question 14 :
Molecules whose mirror image is non- superimposable over them are known as chiral. Which of the following molecules is chiral in nature. <br>
Question 15 :
Correct arrangement of the following nucleophiles in the order of their nucleophilic strength is<br>
Question 16 :
Which of the following would be produced when acetylene reacts with {tex} \mathrm{H C l} {/tex}
Question 17 :
Sec. Butyl chloride will undergo alkaline hydrolysis in the polar solvent by hydrolysis.<br>
Question 18 :
The order of reactivities of the following alkyl halides for a {tex} S N ^ { 2 } {/tex} reaction is
Question 21 :
What happens when {tex}\mathrm{ C C l _ { 4 }} {/tex} is treated with {tex} \mathrm{A g N O _ { 3 }} {/tex}
Question 22 :
Which of the following haloalkanes reacts with aqueous KOH most easily? <br>
Question 23 :
In methyl alcohol solution, bromine reacts with ethylene to yield {tex} \operatorname { Br } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OCH } _ { 3 } {/tex} in addition to {tex} 1,2 {/tex} -dibromoethane because<br>
Question 25 :
In the bromination of isobutene, which product will be formed in excess?<br>
Question 26 :
An important insecticide is obtained by the action of chloral on chlorobenzene. It is
Question 27 :
In preparation of {tex} \mathrm{C H C l _ { 3 }} {/tex} from ethanol and bleaching powder, the latter provides
Question 32 :
Which of the following is the byproduct when $R-OH$ is reacted with $PCl_3$?<br/>
Question 33 :
Which of the following substances cannot be used for replacing the $- OH$ group of alcohols by chlorine atom?<br/>
Question 35 :
The main difference in $C-X$ bond of a haloalkane and a haloarene is:
Question 36 :
Which of the correct name match for the following reactions ?
Question 37 :
Assertion: Addition of $HCI$ to propene in presence of peroxide gives $1-chloropropane$.
Reason: The reaction occurs by carbonium ion intermediate.
Question 38 :
Which among the given haloalkanes develop colour when exposed to light?
Question 39 :
The halogen which is most reactive in the halogenation of alkanes under sunlight is:
Question 40 :
Assertion: The para-isomers have higher melting point as compared to their ortho and meta-isomers.
Reason: It is due to symmetry of para-isomers that fits in crystal lattice better as compared to ortho- and meta-isomers.
Question 42 :
The reaction $ArN_{2}^{+}Cl^{-}\xrightarrow [ ]{ CuHCl }ArCl+N_{2}+CuCl$ is named as _______.
Question 44 :
In which of the following cases $C-C$ bond length will be the longest?
Question 46 :
Assertion: Iodine reacts with alcohols to give alkyl iodine only in presence of phosphorous.
Reason: Phosphorus reacts with $I_{2}$to give $PI_{3}$ which replaces $OH$ group of alcohol to produce $R-I$<br/><br/>$2P+3I\rightarrow 2PI_{3}$<br/><br/>$3R OH+PI_{3} \rightarrow3RI+H_{3}PO_{3}$
Question 47 :
$\underset { \text{Specific Rotaion}=+{ 50 }^{ o } }{ Ph-CH(OH){ CH }_{ 3 } } \xrightarrow [ ]{ SO{ Cl }_{ 2 } } \quad \underset { |\\ Cl }{ PhCl } -{ CH }_{ 3 }$<br>What is the specific rotation of the product?
Question 48 :
Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called:
Question 49 : Choose the correct answer among the alternatives given :<div><br/>$CH_3-{\underset{Br}{\underset{|}{CH}}}-CH_3\xrightarrow{[alc KOH]}X\xrightarrow[HBr]{peroxide}Y\xrightarrow[NaI]{acetone}Z$<div> In the given reaction what will be the final product?</div></div>
Question 50 :
The principal organic product formed in the reaction is:<br/>$CH_2 = CH(CH_2)_8 COOH + HBr \xrightarrow [ ]{Peroxide}$ <br/>
Question 52 :
Which of the following reaction(s) can be used for the preparation of alkyl halides?<br>(I) $CH_3CH_2OH+HCl\xrightarrow {anh.ZnCl_2}$<br>(II) $CH_3CH_2OH+HCl\rightarrow$<br>(III) $(CH_3)_3COH+HCl\rightarrow$<br>(IV) $(CH_3)_2CHOH+HCl\xrightarrow {anh.ZnCl_2}$
Question 53 :
Suggest a sequence of reactions suitable for preparing $2-$ bromopropane from $1-$ bromopropane. You may use any necessary organic or inorganic reagents.<br/>
Question 54 :
When glycerol is reacted with $PX_3$ one of the byproduct is ${X_2}$. The $PX_3$ must be:
Question 55 : The order of reactivity of following alcohols with halogen acids is:<div><br/>(A) $C{ H }_{ 3 }C{ H }_{ 2 }-C{ H }_{ 2 }-OH$<div><br/>(B) $C{ H }_{ 3 }-C{ H }_{ 2 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ C } H-OH$</div><div><br/>(C) $C{ H }_{ 3 }-C{ H }_{ 2 }-\overset { \underset { | }{ C{ H }_{ 3 } } }{ \underset { \overset { | }{ C{ H }_{ 3 } } }{ C } } -OH$</div></div>
Question 56 :
Fluorobenzene ${ C }_{ 6 }{ H }_{ 5 }F$ can be synthesized in the laboratory:
Question 57 :
In a chemical reaction during the formation of alkyl iodide, phosphorus acid is formed as by product. Which of the following is the reagent reacted with alcohol?<br/>
Question 59 :
Carbon reacts with chlorine to form $CCl_4$. 36 gm of carbon was mixed with 142 g of $Cl_2$. Calculate the mass of $CCl_4$ produced in the reaction.
