Which of the following compounds undergoes mucleophilic substitution reaction most easily?

Which of the following compounds undergoes mucleophilic substitution reaction most easily?
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Which of the following compounds undergoes mucleophilic substitution reaction most easily? A. B. C. D.
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Benzene undergoes substitution reaction more easily than addition reaction because (a) it has a cyclic structure (b) it has three double bonds (c) it has six hydrogen atoms (d) there is delocalization of electrons

Description : Benzene undergoes substitution reaction more easily than addition reaction because (a) it has a cyclic structure (b) it has three double bonds (c) it has six hydrogen atoms (d) there is delocalization of electrons

Last Answer : there is delocalization of electrons

Benzene undergoes substitution reaction more easily than addition reaction because (a) it has a cyclic structure (b) it has three double bonds (c) it has six hydrogen atoms (d) there is delocalization of electrons

Description : Benzene undergoes substitution reaction more easily than addition reaction because (a) it has a cyclic structure (b) it has three double bonds (c) it has six hydrogen atoms (d) there is delocalization of electrons

Last Answer : there is delocalization of electrons

Which of the following undergoes nucleophilic substitution exclusively by `S_(N^(1))` mechanism?

Description : Which of the following undergoes nucleophilic substitution exclusively by `S_(N^(1))` mechanism?

Last Answer : Which of the following undergoes nucleophilic substitution exclusively by `S_(N^(1))` ... Isopropyl chloride C. Chlorobenzene D. Benzyl chloride

Quinoline undergoes nucleophilic substitution on heating with NaNH2 to give (a) 2-Aminoquinoline (b) 4-Aminoquinoline (c) 3-Aminoquinoline (d) 8-Aminoquinoline

Description : Quinoline undergoes nucleophilic substitution on heating with NaNH2 to give (a) 2-Aminoquinoline (b) 4-Aminoquinoline (c) 3-Aminoquinoline (d) 8-Aminoquinoline

Last Answer : 2-Aminoquinoline

Pyridine undergoes nuclophilic substitution with NaNH2 at 100°C to form (a) 2-Aminopyridine (b) 3-Aminopyridine (c) 4-Aminopyridine (d) None of these

Description : Pyridine undergoes nuclophilic substitution with NaNH2 at 100°C to form (a) 2-Aminopyridine (b) 3-Aminopyridine (c) 4-Aminopyridine (d) None of these

Last Answer : 2-Aminopyridine

Pyridine undergoes electrophilic substitution with fuming H2SO4 at 350°C to give (a) 2-Pyridinesulfonic acid (b) 4-Pyridinesulfonic acid (c) 3-Pyridinesulfonic acid (d) None of these

Description : Pyridine undergoes electrophilic substitution with fuming H2SO4 at 350°C to give (a) 2-Pyridinesulfonic acid (b) 4-Pyridinesulfonic acid (c) 3-Pyridinesulfonic acid (d) None of these

Last Answer : 3-Pyridinesulfonic acid

Anthracene undergoes electrophilic substitution reactions mainly at (a) C-1 (b) C-2 (c) C-9 (d) C-1 and C-2

Description : Anthracene undergoes electrophilic substitution reactions mainly at (a) C-1 (b) C-2 (c) C-9 (d) C-1 and C-2

Last Answer : C-9

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

Acetyl chloride undergoes nucleophilic substitution at a faster rate than methyl acetate because __________. (a) the ester is more sterically hindered than the acid chloride (b) the acid chloride is more sterically hindered than the ester (c) the methoxide is a better leaving group than chloride (d) chloride is a better leaving group than methoxide

Description : Acetyl chloride undergoes nucleophilic substitution at a faster rate than methyl acetate because __________. (a) the ester is more sterically hindered than the acid chloride (b) the acid chloride is ... is a better leaving group than chloride (d) chloride is a better leaving group than methoxide

Last Answer : chloride is a better leaving group than methoxide

Which of the following undergoes fission reaction easily? (A) U-235 (B) U-238 (C) Th-232 (D) None of these

Description : Which of the following undergoes fission reaction easily? (A) U-235 (B) U-238 (C) Th-232 (D) None of these

Last Answer : (A) U-235

Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?

Description : Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?

Last Answer : Ans. Due to the presence of an electron cloud containing 6 pi electrons above and below the plane of the ring, benzene is a source of electrons. Consequently, it attracts ... . As a result, benzene undergoes electrophilic substitution reactions easily and nucleophilic substitution with difficulty.

Esters and amides are most easily made by nucleophilic acyl substitution reactions on : (a) acid anhydrides (b) carboxylates (c) carboxylic acids (d) acid chlorides

Description : Esters and amides are most easily made by nucleophilic acyl substitution reactions on : (a) acid anhydrides (b) carboxylates (c) carboxylic acids (d) acid chlorides

Last Answer : acid chlorides

What state of matter undergoes changes in volume most easily?

Description : What state of matter undergoes changes in volume most easily?

Last Answer : Gases adapt most easily to changes in volume.

Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds:

Description : Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds:

Last Answer : Identify the correct order of reactivity in electrophilic substitution reactions of the following ... C. `IIgtIgtIIIgtIV` D. `IIgtIIIgtIgtIV`

Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds :

Description : Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds :

Last Answer : Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds : ... ` C. `2gt1gt3gt4` D. `2gt3gt1gt4`

Among the following compounds, the decreasing order of reactivity towards electrophilic substitution is :

Description : Among the following compounds, the decreasing order of reactivity towards electrophilic substitution is :

Last Answer : Among the following compounds, the decreasing order of reactivity towards electrophilic substitution is : ... C. `IVgtIgtIIgtIII` D. `IIIgtIgtIIgtIV`

Which of the following compounds reacts least rapidly in electrophilic substitution reactions? (a) Nitrobenzene (b) Phenol (c) Bromobenzene (d) Toluene

Description : Which of the following compounds reacts least rapidly in electrophilic substitution reactions? (a) Nitrobenzene (b) Phenol (c) Bromobenzene (d) Toluene

Last Answer : Nitrobenzene

Which of the following is not correct concerning substitution and elimination reactions of alkyl halides? (a) The electrophile replaces the leaving group. (b) Compounds containing electron-donating groups bonded to an sp3 hybridized carbon undergo substitution and elimination reactions. (c) The electronegative atom is replaced by another atom or group in substitution reactions. (d) (a) and (b)

Description : Which of the following is not correct concerning substitution and elimination reactions of alkyl halides? (a) The electrophile replaces the leaving group. (b) Compounds containing electron-donating groups bonded to an ... replaced by another atom or group in substitution reactions. (d) (a) and (b)

Last Answer : (a) and (b)

Compounds P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is `C_(8)H_(8)O`. Q undergoes cannizzaro reactions b

Description : Compounds P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is `C_(8)H_(8)O`. Q undergoes cannizzaro reactions b

Last Answer : Compounds P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is `C_(8) ... R , respectively is (are) A. B. C. D.

Which of the following compounds undergoes nitration most readily? (a) Benzene (b) Toluene (c) Nitrobenzene (d) Benzoic acid

Description : Which of the following compounds undergoes nitration most readily? (a) Benzene (b) Toluene (c) Nitrobenzene (d) Benzoic acid

Last Answer : Toluene

Arrange the following compound in reactivity towards EAS (Electrophilic aromatic substitution) reaction ?

Description : Arrange the following compound in reactivity towards EAS (Electrophilic aromatic substitution) reaction ?

Last Answer : Arrange the following compound in reactivity towards EAS (Electrophilic aromatic substitution) reaction ? A. `A gt B gt ... A` D. `C gt B gt D gt A`

Can the amino group, in the aniline molecule, become meta-directing in an electrophilic substitution reaction ?

Description : Can the amino group, in the aniline molecule, become meta-directing in an electrophilic substitution reaction ?

Last Answer : Can the amino group, in the aniline molecule, become meta-directing in an electrophilic substitution reaction ... D. Yes, in a non-polar solvent

Toluene o/p orienting with respect to an electrophilic substitution reaction due to

Description : Toluene o/p orienting with respect to an electrophilic substitution reaction due to

Last Answer : Toluene o/p orienting with respect to an electrophilic substitution reaction due to A. `+I` effect of the ... ring D. `+M` effect to the methyl group.

In a `S_(N^(2))` substitution reaction of the type `R-Br+Cl^(-)overset("DMF")rarrR-Cl+Br^(-)` Which one of the following has the highest relative rate

Description : In a `S_(N^(2))` substitution reaction of the type `R-Br+Cl^(-)overset("DMF")rarrR-Cl+Br^(-)` Which one of the following has the highest relative rate

Last Answer : In a `S_(N^(2))` substitution reaction of the type `R-Br+Cl^(-)overset("DMF")rarrR-Cl+Br^(-)` Which one of ... CH_(2)Br` D. `(CH_(3))_(2)CH-CH_(2)Br`

Which of the following is a free radical substitution reaction?

Description : Which of the following is a free radical substitution reaction?

Last Answer : Which of the following is a free radical substitution reaction? A. `CH_(3)CHO+HCNrarrCH_(3)CH(OH)CN` B. C. D.

Which one of the following is most reactive towards nucleophilic substitution reaction ?

Description : Which one of the following is most reactive towards nucleophilic substitution reaction ?

Last Answer : Which one of the following is most reactive towards nucleophilic substitution reaction ? A. `H_(2)C=CH-Cl` B. ` ... 3)CH=CHCl` D. `ClCH_(2)-CH=CH_(2)`

Which of the following is least reactive in a nucleophilic substitution reaction?

Description : Which of the following is least reactive in a nucleophilic substitution reaction?

Last Answer : Which of the following is least reactive in a nucleophilic substitution reaction? A. `(CH_(3))_(3)C-Cl` B. `CH_ ... 3)CH_(2)Cl` D. `CH_(2)=CHCH_(2)Cl`

During the reaction of Benzene diazonium chloride with para-cresol the substitution occurs at_____position of p-cresol.

Description : During the reaction of Benzene diazonium chloride with para-cresol the substitution occurs at_____position of p-cresol.

Last Answer : During the reaction of Benzene diazonium chloride with para-cresol the substitution occurs at_____position of p-cresol.

Phenol is more reactive than benzene towards electrophilic substitution reaction. In case of Phenol, the intermediate carbocation is more resonance st

Description : Phenol is more reactive than benzene towards electrophilic substitution reaction. In case of Phenol, the intermediate carbocation is more resonance st

Last Answer : Phenol is more reactive than benzene towards electrophilic substitution reaction. In case of Phenol, the ... D. A is incorrect but R is correct

Give the example for electrophilic substitution reaction ?

Description : Give the example for electrophilic substitution reaction ?

Last Answer : The species, which accepts the electrons, are called Electrophilles (or) Electrophilic reagents. When the atom (or) group of atoms present in the organic compound is replaced by another atom (or) group of atoms (electrophilic) is called electrophilic substitution reaction.

Adding Cl2 to benzene in the presence of AlCl3 is an example of – (1) Elimination reaction (2) Substitution reaction (3) None of the options (4) Addition reaction

Description : Adding Cl2 to benzene in the presence of AlCl3 is an example of – (1) Elimination reaction (2) Substitution reaction (3) None of the options (4) Addition reaction

Last Answer : (2) Substitution reaction Explanation: The reaction between benzene and chlorine in the presence of a catalyst such as aluminium chloride gives Chlorobenzene. This reaction is an example of electrophilic substitution ... since one of the hydrogen atoms on the ring is replaced by a chlorine atom.

What is meant by substitution reaction?

Description : What is meant by substitution reaction?

Last Answer : The reaction in which one or more hydrogen atoms of a hydrocarbon are replaced by some other atoms is called substitution reaction.

The reaction between methane and chlorine in diffused sunlight is-----? A. Oxidation B. Reduction C. Polymerisation D. Radical substitution (Answer)

Description : The reaction between methane and chlorine in diffused sunlight is-----? A. Oxidation B. Reduction C. Polymerisation D. Radical substitution (Answer)

Last Answer : D. Radical substitution (Answer)

Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Last Answer : Electrophilic substitution

Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Last Answer : Electrophilic substitution

What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the chain reaction. (b) It functions by destabilizing the carbocationic intermediate and thereby increases the rate of H+ loss. (c) It serves as a Lewis base catalyst by reacting with Cl2 to generate chloride ions. (d) It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

Description : What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the ... by reacting with the Cl2 and thereby activates it toward attack by benzene's π electrons.

Last Answer : It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

The characteristic reaction of carboxylic acids is : (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic addition (d) nucleophilic substitution

Description : The characteristic reaction of carboxylic acids is : (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic addition (d) nucleophilic substitution

Last Answer : nucleophilic substitution

Which halogen does not appreciably react with methane in a free-radical substitution reaction? (a) chlorine (b) bromine (c) iodine (d) fluorine

Description : Which halogen does not appreciably react with methane in a free-radical substitution reaction? (a) chlorine (b) bromine (c) iodine (d) fluorine

Last Answer : iodine

BHC (Benzene hexachloride) is made by the chlorination of benzene (A) Which is an addition reaction (B) Which is a substitution reaction (C) In absolute dark (D) In presence of sunlight

Description : BHC (Benzene hexachloride) is made by the chlorination of benzene (A) Which is an addition reaction (B) Which is a substitution reaction (C) In absolute dark (D) In presence of sunlight

Last Answer : (A) Which is an addition reaction

Adding Cl2 to benzene in the presence of AlCl3 is an example of : (1) Elimination reaction (2) Substitution reaction (3) None of the options (4) Addition reaction

Description : Adding Cl2 to benzene in the presence of AlCl3 is an example of : (1) Elimination reaction (2) Substitution reaction (3) None of the options (4) Addition reaction

Last Answer : Substitution reaction

A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Description : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (S) is: A. B. C. D.

A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Description : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration ... respectively, are: A. B. C. D.

A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Description : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o

Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (P) is: A. B. C. D.

KI in acetone, undergoes `S_(N)2` reaction with each of `P,Q ,R` and S The rates of the reaction very as `underset(P)(H_(3)C-Cl)` .

Description : KI in acetone, undergoes `S_(N)2` reaction with each of `P,Q ,R` and S The rates of the reaction very as `underset(P)(H_(3)C-Cl)` .

Last Answer : KI in acetone, undergoes `S_(N)2` reaction with each of `P,Q ,R` and S The rates of the reaction very as ` ... R gt Q gt S D. R gt P gt S gt Q

If an organic compound like glucose undergoes hydrolysis then the reaction is exergonic. True or false?

Description : If an organic compound like glucose undergoes hydrolysis then the reaction is exergonic. True or false?

Last Answer : False. It cannot be exergonic considering the nature of the pyranose ring, a strong structure that requires high pressures and temperatures in order to break it. There is a reference from 1995 [Glucose ... ) is exergonic, that's the reason of why the body (in higher organisms) generates heat.

If an organic compound like glucose undergoes hydrolysis then the reaction is exergonic. True or false?

Description : If an organic compound like glucose undergoes hydrolysis then the reaction is exergonic. True or false?

Last Answer : False. It cannot be exergonic considering the nature of the pyranose ring, a strong structure that requires high pressures and temperatures in order to break it. There is a reference from 1995 [Glucose ... ) is exergonic, that's the reason of why the body (in higher organisms) generates heat.

Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens

Description : Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens

Last Answer : Isopropylbenzene

When formaldehyde is treated with 50% NaOH solution, it undergoes (a) Cannizzaro reaction (b) Wurtz reaction (c) Aldol condensation (d) Hydrolysis

Description : When formaldehyde is treated with 50% NaOH solution, it undergoes (a) Cannizzaro reaction (b) Wurtz reaction (c) Aldol condensation (d) Hydrolysis

Last Answer : Cannizzaro reaction

Acetone undergoes reduction with zinc amalgam in HCl to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction(d) Aldol condensation

Description : Acetone undergoes reduction with zinc amalgam in HCl to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction (d) Aldol condensation

Last Answer : Clemmensen reduction