Consider the following diazonium ion: The order of reactivity towards diazo coupling with phenol in presence of dil. NaOH:

Consider the following diazonium ion: The order of reactivity towards diazo coupling with phenol in presence of dil. NaOH:
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Consider the following diazonium ion: The order of reactivity towards diazo coupling with phenol in presence of dil. NaOH ... ` D. `S gt R gt Q gt P`
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When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Description : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Last Answer : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is ... is formed which can be given as: A. B. C. D.

When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Description : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Last Answer : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt ... reaction. The final product is A. B. C. D.

When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Description : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction.

Last Answer : When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and ... gt R gt S` D. `S gt R gt Q gt P`

For such kind of diazo- coupling reaction the suitable substituents P and S are respectively:

Description : For such kind of diazo- coupling reaction the suitable substituents P and S are respectively:

Last Answer : For such kind of diazo- coupling reaction the suitable substituents P and S are respectively: A. `-NH_(2)` and `- ... C. `-NH_(2)` and `-NHCH_(3)` D.

Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Description : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Last Answer : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the ... `H_(2)SO_(4)` produces B. C. D.

Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel

Description : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel

Last Answer : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` ... A and B are respectively A. B. C. D.

A solution contains 1g mol. Each of p-toluene diazonium chloride and p-nitrophenyl diazonium cholride. To this 1g mol.of alkaline solution of phenol i

Description : A solution contains 1g mol. Each of p-toluene diazonium chloride and p-nitrophenyl diazonium cholride. To this 1g mol.of alkaline solution of phenol i

Last Answer : A solution contains 1g mol. Each of p-toluene diazonium chloride and p-nitrophenyl diazonium ... Predict the major product. Explain your answer.

Benzene diazonium chloride on reaction with phenol in a basic medium gives:

Description : Benzene diazonium chloride on reaction with phenol in a basic medium gives:

Last Answer : Benzene diazonium chloride on reaction with phenol in a basic medium gives: A. benzene B. chlorobenzene C. diphenyl ether D. p-hydroxy azobenzene

Coupling reaction takes place when benzene diazonium chloride is treated with :

Description : Coupling reaction takes place when benzene diazonium chloride is treated with :

Last Answer : Coupling reaction takes place when benzene diazonium chloride is treated with : A. Benzaldehyde B. `alpha`-naphthol C. N, N-dimethyl aniline D. Phenol

Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride?

Description : Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride?

Last Answer : Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride? ... B. Phenol C. Anisole D. Nitrobenzene

Preparation of a diazonium salt from a primary aromatic amine is known as : (a) Coupling reaction (b) Sandmeyer reaction (c) Diazotization (d) Corey-House synthesis

Description : Preparation of a diazonium salt from a primary aromatic amine is known as : (a) Coupling reaction (b) Sandmeyer reaction (c) Diazotization (d) Corey-House synthesis

Last Answer : Diazotization

`F_2 +"dil NaOH" to A + NaF + H_2O` `H_2O` + conc. NaOH `to` B + NaF + `H_2O` A and B respectively are :

Description : `F_2 +"dil NaOH" to A + NaF + H_2O` `H_2O` + conc. NaOH `to` B + NaF + `H_2O` A and B respectively are :

Last Answer : `F_2 +"dil NaOH" to A + NaF + H_2O` `H_2O` + conc. NaOH `to` B + NaF + `H_2O` A and B respectively ... B. `O_2 and OF_2` C. Both `O_2` D. Both `OF_2`

The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil.NaOH)rarrA overset(1.CH_(3)MgBr)underse

Description : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil.NaOH)rarrA overset(1.CH_(3)MgBr)underse

Last Answer : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil. ... )overset(||)(C)-CH_(3)` B. C. D.

Alkaloids are usually purified by extraction with (A) Ether (B) Dil HCl (C) NaOH (D) Chloroform

Description : Alkaloids are usually purified by extraction with (A) Ether (B) Dil HCl (C) NaOH (D) Chloroform

Last Answer : Answer : B

The reagent used to distinguish iron(II) chloride and iron (ii) chloride (a)distilled water (b) NaOH (c) dil HCl (d) warm water

Description : The reagent used to distinguish iron(II) chloride and iron (ii) chloride (a)distilled water (b) NaOH (c) dil HCl (d) warm water

Last Answer : (b) NaOH

Arrange the following in correct order of reactivity towards `Cl_(2)//hupsilon` (A) `CH_(4)` (B) `CH_(3)CH_(3)` (C ) `CH_(3)CH_(2)CH_(3)` (D) `CH_(3)-

Description : Arrange the following in correct order of reactivity towards `Cl_(2)//hupsilon` (A) `CH_(4)` (B) `CH_(3)CH_(3)` (C ) `CH_(3)CH_(2)CH_(3)` (D) `CH_(3)-

Last Answer : Arrange the following in correct order of reactivity towards `Cl_(2)//hupsilon` (A) `CH_(4)` (B) `CH_(3)CH_(3)` ( ... gt A gt D` D. `C gt B gt D gt A`

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`

The order of reactivity of following alcohols, towards conc. HCl is :

Description : The order of reactivity of following alcohols, towards conc. HCl is :

Last Answer : The order of reactivity of following alcohols, towards conc. HCl is : A. `IgtIIgtIIIgtIV` B. `IgtIIIgtIIgtIV` C. `IVgtIIIgtIIgtI` D. `IVgtIIIgtIgtII`

Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF

Description : Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF

Last Answer : Ans. HI> HBr> HCl >HF

Consider the following bromides: The correct order of `S_(N^(1))` reactivity is :

Description : Consider the following bromides: The correct order of `S_(N^(1))` reactivity is :

Last Answer : Consider the following bromides: The correct order of `S_(N^(1))` reactivity is : A. `IgtIIgtIII` B. `IIgtIIIgtI` C. `IIgtIgtIII` D. `IIIgtIIgtI`

When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involed in the

Description : When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involed in the

Last Answer : When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of ... as intermediates ? A. B. C. D.

In the reaction of phenol with `CHCl_(3)` and aqueous `NaOH` at `70^(@)`, the electrophile attacking the ring is:

Description : In the reaction of phenol with `CHCl_(3)` and aqueous `NaOH` at `70^(@)`, the electrophile attacking the ring is:

Last Answer : In the reaction of phenol with `CHCl_(3)` and aqueous `NaOH` at `70^(@)`, the electrophile attacking the ring is: ... ` C. `:"CCl"_(2)` D. `COCl_(2)`

Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A

Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A

Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol ... P-toluedine (7) Picric acid (8) Squaric acid

Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) Cyclohexanol (iii) 2, 4-di nitro phenol (iv) Benzoic (v)

Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) Cyclohexanol (iii) 2, 4-di nitro phenol (iv) Benzoic (v)

Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) ... ) `alpha-` naphthol (ix) N-methyl aniline

(A) Benzoic acid and phenol can be distinguished by NaOH. (R) Benzoic acid is stronger acid than phenol.

Description : (A) Benzoic acid and phenol can be distinguished by NaOH. (R) Benzoic acid is stronger acid than phenol.

Last Answer : (A) Benzoic acid and phenol can be distinguished by NaOH. (R) Benzoic acid is stronger acid than ... in correct D. A is incorrect but R is correct

Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Description : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Last Answer : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K" ... -nitroaniline D. toluene, m-nitrobenzene and m-toulidine

Identify the product Z in the following sequence of reactions "`phenol" overset(NaOH)rarrX underset(4-7 atm, 410 K)overset(CO_(2))rarrY overset(H_(3)O

Description : Identify the product Z in the following sequence of reactions "`phenol" overset(NaOH)rarrX underset(4-7 atm, 410 K)overset(CO_(2))rarrY overset(H_(3)O

Last Answer : Identify the product Z in the following sequence of reactions "`phenol" overset(NaOH)rarrX ... Salicyladehyde C. Benzoic acid D. Salicylic acid

Phenol on heating with NaOH followed by reaction with alky1 halide gives

Description : Phenol on heating with NaOH followed by reaction with alky1 halide gives

Last Answer : Phenol on heating with NaOH followed by reaction with alky1 halide gives A. Acetone B. Ether C. Ethonal D. Acetic acid

What happens when phenol is warmed with CCl4 in aqueous NaOH?

Description : What happens when phenol is warmed with CCl4 in aqueous NaOH?

Last Answer : Feel Free to Answer

Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH

Description : Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH

Last Answer : Fusing sodium benzenesulfonate with NaOH

Anisole is formed when phenol is treated with (a) CH3I/NaOH (b) CH3CH2I/NaOH (c) CHCl3/NaOH (d) Acetic anhydride

Description : Anisole is formed when phenol is treated with (a) CH3I/NaOH (b) CH3CH2I/NaOH (c) CHCl3/NaOH (d) Acetic anhydride

Last Answer : CH3I/NaOH

Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst

Description : Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst

Last Answer : treating benzenediazonium chloride with KI

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`

Explain the reactivity of alkali metals towards water.

Description : Explain the reactivity of alkali metals towards water. 

Last Answer : The alkali metals react with water to form hydroxide and dihydrogen. It may be noted that although lithium has most negative E0 value, its reaction with water is less vigorous than ... explosively with water. They also react with proton donors such as alcohol, gaseous ammonia and alkynes.  

`XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Description : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Last Answer : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly ... `Na_(4)XeO_(6)` D. `Na_(4)XeO_(4)`

The presumptive test for semen is (a). Acid phosphatase test (b). Sodium alpha naphthyl test (c). Napthanil diazo test (d). Barbiturate test

Description : The presumptive test for semen is (a). Acid phosphatase test (b). Sodium alpha naphthyl test (c). Napthanil diazo test (d). Barbiturate test

Last Answer : Ans: (a). Acid phosphatase test 

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

Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on

Description : Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on

Last Answer : Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of ... D. A is incorrect but R is correct

Consider the follwing complexes ion `P,Q` and `R` `P =[FeF_(6)]^(3-), Q=[V(H_(2)O)_(6)]^(2+)` and `R=[Fe(H_(2)O)_(6)]^(2+)` The correct order of the c

Description : Consider the follwing complexes ion `P,Q` and `R` `P =[FeF_(6)]^(3-), Q=[V(H_(2)O)_(6)]^(2+)` and `R=[Fe(H_(2)O)_(6)]^(2+)` The correct order of the c

Last Answer : Consider the follwing complexes ion `P,Q` and `R` `P =[FeF_(6)]^(3-), Q=[V(H_(2)O)_(6)]^(2+)` and `R=[Fe( ... lt P` C. `R lt P lt Q` D. `Q lt P lt R`

The product formed by the reaction of acetamide with bromine in presence of `NaOH` is

Description : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is

Last Answer : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is A. `CH_(3)CN` B. `CH_(3) ... `CH_(3)CH_(2)OH` D. `CH_(3)NH_(2)`

Cinnamaldehyde is prepared by the treatment of : (a) benzaldehyde with acetaldehyde in the presence of NaOH (b) benzaldehyde with formaldehyde in the presence of NaOH (c) benzophenone with acetaldehyde in the presence of NaOH (d) benzophenone with formaldehyde in the presence of NaOH

Description : Cinnamaldehyde is prepared by the treatment of : (a) benzaldehyde with acetaldehyde in the presence of NaOH (b) benzaldehyde with formaldehyde in the presence of NaOH (c) benzophenone with acetaldehyde in the presence of NaOH (d) benzophenone with formaldehyde in the presence of NaOH

Last Answer : benzaldehyde with acetaldehyde in the presence of NaOH

Acetone undergoes reduction with hydrazine in the presence of NaOH to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction (d) Reformatsky reaction

Description : Acetone undergoes reduction with hydrazine in the presence of NaOH to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction (d) Reformatsky reaction

Last Answer : Wolf-Kishner reduction

Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields `,`

Description : Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields `,`

Last Answer : Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields ... orange B. Phenolphthaline C. Aspirin D. Methyl Blue

The presence of free ammonia in sewage, is detected by A. Boiling B. Adding potassium permanganate C. Adding sulphuric acid D. Phenol-di-sulphuric acid

Description : The presence of free ammonia in sewage, is detected by A. Boiling B. Adding potassium permanganate C. Adding sulphuric acid D. Phenol-di-sulphuric acid

Last Answer : ANS: A

Aspirin is produced by heating salicylic acid with (a) acetic anhydride in the presence of phosphoric acid (b) benzoic anhydride in the presence of phosphoric acid (c) methyl alcohol in the presence of sulfuric acid (d) phenol in the presence of sulfuric acid

Description : Aspirin is produced by heating salicylic acid with (a) acetic anhydride in the presence of phosphoric acid (b) benzoic anhydride in the presence of phosphoric acid (c) methyl alcohol in the presence of sulfuric acid (d) phenol in the presence of sulfuric acid

Last Answer : acetic anhydride in the presence of phosphoric acid

Fluorination of an aromatic ring is easily accompolished by treating a diazonium salt with `HBF_4`. Which of the following conditions is correct about

Description : Fluorination of an aromatic ring is easily accompolished by treating a diazonium salt with `HBF_4`. Which of the following conditions is correct about

Last Answer : Fluorination of an aromatic ring is easily accompolished by treating a diazonium salt with `HBF_4`. Which of the ... O //H_(2)O` D. `NaF//Cu`

Conversion of benzene diazonium chloride to chloro benzene is an example of which of the following reactions ?

Description : Conversion of benzene diazonium chloride to chloro benzene is an example of which of the following reactions ?

Last Answer : Conversion of benzene diazonium chloride to chloro benzene is an example of which of the following ... Friedel-Crafts acylation C. Sandmeyer D. Wurtz

Complete reduction of benzene-diazonium chloride with Zn/HCl gives :

Description : Complete reduction of benzene-diazonium chloride with Zn/HCl gives :

Last Answer : Complete reduction of benzene-diazonium chloride with Zn/HCl gives : A. Aniline B. Phenylhydrazine C. Azobenzene D. Hydrazobenzene

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.

Benzene diazonium chloride on hydrolysis gives

Description : Benzene diazonium chloride on hydrolysis gives

Last Answer : Benzene diazonium chloride on hydrolysis gives A. Benzene B. Benzyl alcohol C. Phenol D. Chlorobenzene