Which of the following give aniline by reduction of nitrobenzene?

Which of the following give aniline by reduction of nitrobenzene?
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Which of the following give aniline by reduction of nitrobenzene? A. `H_(2)//Pd-C` B. `Sn+HCI` C. `Cu+HCI` D. `(NH_(4))_(2)S`
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Nitrobenzene undergoes reduction with zinc and KOH to give (a) Aniline (b) Hydrazobenzene (c) Azobenzene (d) None of these

Description : Nitrobenzene undergoes reduction with zinc and KOH to give (a) Aniline (b) Hydrazobenzene (c) Azobenzene (d) None of these

Last Answer : Hydrazobenzene

Aniline is prepared by (a) the reaction of benzene with ammonia (b) the reduction of nitrobenzene with Sn/HCl (c) the dehydrogenation of nitrobenzene (d) the reaction of nitrobenzene with I2/NaOH

Description : Aniline is prepared by (a) the reaction of benzene with ammonia (b) the reduction of nitrobenzene with Sn/HCl (c) the dehydrogenation of nitrobenzene (d) the reaction of nitrobenzene with I2/NaOH

Last Answer : the reduction of nitrobenzene with Sn/HCl

Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl

Description : Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl

Last Answer : It liberates nitrogen on treatment with ice-cold nitrous acid

Which of the following will give a precipitate with excess bromine water? (a) Bromobenzene (b) Aniline (c) Nitrobenzene (d) Toluene

Description : Which of the following will give a precipitate with excess bromine water? (a) Bromobenzene (b) Aniline (c) Nitrobenzene (d) Toluene

Last Answer : Aniline

Which of the following statements is False/Incorrect about nitrobenzene? (a) is formed by nitration of benzene at temperatures below 60°C. (b) can be further nitrated to give m-dinitrobenzene. (c) can be oxidized with KMnO4 to give benzoic acid. (d) can be reduced with Sn/HCl to give aniline.

Description : Which of the following statements is False/Incorrect about nitrobenzene? (a) is formed by nitration of benzene at temperatures below 60°C. (b) can be further nitrated to give m-dinitrobenzene. (c) can be oxidized with KMnO4 to give benzoic acid. (d) can be reduced with Sn/HCl to give aniline.

Last Answer : can be oxidized with KMnO4 to give benzoic acid

When aniline is heated with glycerol in the presence of sulfuric acid and nitrobenzene, it gives quinoline. This reaction in called (a) Fischer synthesis (b) Skraup synthesis (c) Diazotization (d) Corey-House synthesis

Description : When aniline is heated with glycerol in the presence of sulfuric acid and nitrobenzene, it gives quinoline. This reaction in called (a) Fischer synthesis (b) Skraup synthesis (c) Diazotization (d) Corey-House synthesis

Last Answer : Skraup synthesis

Nitrobenzene reacts with Br2 in the presence of FeCl3 to give(a) o-chloronitrobenzene(b) o-bromonitrobenzene(c) m-chloronitrobenzene(d) m-bromonitrobenzene

Description : Nitrobenzene reacts with Br2 in the presence of FeCl3 to give (a) o-chloronitrobenzene (b) o-bromonitrobenzene (c) m-chloronitrobenzene (d) m-bromonitrobenzene

Last Answer : m-bromonitrobenzene

Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light

Description : Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light

Last Answer : Concentrated H2SO4

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

In the following compounds, anisole (I), benzene (II) and nitrobenzene (III), the ease of reaction with electrophiles is:

Description : In the following compounds, anisole (I), benzene (II) and nitrobenzene (III), the ease of reaction with electrophiles is:

Last Answer : In the following compounds, anisole (I), benzene (II) and nitrobenzene (III), the ease of reaction ... . `IIIgtIIgtI` C. `IIgtIgtIII` D. `IgtIIgtIII`

Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure. Nitrobenzene will distil off __________ °C. (A) At < 100 (B) At > 210.6 (C) Between 100 and 210 (D) None of these

Description : Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure. Nitrobenzene will distil off __________ °C. (A) At < 100 (B) At > 210.6 (C) Between 100 and 210 (D) None of these

Last Answer : (A) At < 100

Nitration of nitrobenzene with HNO3/H2SO4 gives : (a) m-dinitrobenzene (b) o-dinitrobenzene (c) p-dinitrobenzene (d) m-nitrobenzenesulfonic acid

Description : Nitration of nitrobenzene with HNO3/H2SO4 gives : (a) m-dinitrobenzene (b) o-dinitrobenzene (c) p-dinitrobenzene (d) m-nitrobenzenesulfonic acid

Last Answer : m-dinitrobenzene

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 compounds is most readily sulfonated? (a) Benzene (b) Chlorobenzene (c) Toluene (d) Nitrobenzene

Description : Which of the following compounds is most readily sulfonated? (a) Benzene (b) Chlorobenzene (c) Toluene (d) Nitrobenzene

Last Answer : Toluene

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

Which of the following will undergo substitution in the ortho and para positions rather than in the meta position? (a) Nitrobenzene (b) Benzoic acid (c) Acetanilide (d) Benzaldehyde

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Which of the following compounds reacts most rapidly with HNO3/H2SO4? (a) toluene (b) anisole (c) nitrobenzene(d) benzonitrile

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40. Among the fo the one that is most reactive towards electrophilic nitration is: (1) Benzene (2) Benzoic acid (3) Nitrobenzene (4) Toluene

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Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the fol

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Benzenediazonium chloride reacts with warm water to give (a) Aniline (b) Phenol (c) Benzene (d) Chlorobenzene

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Last Answer : p-Benzoquinone

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Benzamide reacts with Br2 and KOH to give (a) Benzene (b) Benzylamine (c) Aniline (d) Benzonitrile

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Last Answer : Benzylamine

p-bromoaniline is prepared from aniline via

Description : p-bromoaniline is prepared from aniline via

Last Answer : p-bromoaniline is prepared from aniline via A. direct bromination of aniline in presence of Lewis ... in presence of light D. amination of bromine

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

The major product Y in the following sequence of reaction is: Aniline `overset((i) NaNO_(2)//HCl,273K)underset((ii)CuCN//KCN)to(X) overset((i)"DIBAL-H

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Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be

Description : Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be

Last Answer : Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be A. B. C. D.

Which reaction sequence would be best to prepare 3-chloro-aniline form benzene

Description : Which reaction sequence would be best to prepare 3-chloro-aniline form benzene

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Chloroform when treated aniline and alcoholic KOH, the product formed is?

Description : Chloroform when treated aniline and alcoholic KOH, the product formed is?

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Aniline when treated acetyl chlroide in presence of alkali, the product formed is:

Description : Aniline when treated acetyl chlroide in presence of alkali, the product formed is:

Last Answer : Aniline when treated acetyl chlroide in presence of alkali, the product formed is: A. ... benzoyl chloride C. acetophenone D. aniline hydrochloride

Why is aniline soluble in aqueous HCl?

Description : Why is aniline soluble in aqueous HCl?

Last Answer : Why is aniline soluble in aqueous HCl?

Which of the following is more basic than aniline?

Description : Which of the following is more basic than aniline?

Last Answer : Which of the following is more basic than aniline? A. p-Nitroaniline B. Benzyl amine C. Diphenyl amine D. Triphenyl amine

The basicity of aniline is less than that of cyclohexylamine. This is due to :

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Examine the structal formules of following compounds and identify how many compounds are more basic than aniline.

Description : Examine the structal formules of following compounds and identify how many compounds are more basic than aniline.

Last Answer : Examine the structal formules of following compounds and identify how many compounds are more basic than aniline.

Decreasing order of basicity of the three isomers of nitro aniline is:

Description : Decreasing order of basicity of the three isomers of nitro aniline is:

Last Answer : Decreasing order of basicity of the three isomers of nitro aniline is: A. p-nitroaniline `gt o` ... `gt o-` nitroaniline `gt p-` nitroaniline

One mole of aniline warmed with the mixture of `NaNO_(2)+HCl`. If we assume 100% yield, volume of `N_(2)` gas liberated at S.T.P is

Description : One mole of aniline warmed with the mixture of `NaNO_(2)+HCl`. If we assume 100% yield, volume of `N_(2)` gas liberated at S.T.P is

Last Answer : One mole of aniline warmed with the mixture of `NaNO_(2)+HCl`. If we assume 100% yield, volume of `N_(2)` gas ... 4 L` C. `33.6 L` D. `44.8 L`

Reference fuels for knock rating of SI engine fuels would include (a) Iso octane alpha methyl naphthalene (b) Normal octance and aniline (c) Isooctance and n octane (d) N heptane and iso octane

Description : Reference fuels for knock rating of SI engine fuels would include (a) Iso octane alpha methyl naphthalene (b) Normal octance and aniline (c) Isooctance and n octane (d) N heptane and iso octane

Last Answer : Ans : d

Chemical name of Gammaxane is - (1) Toluene (2) Chloro benzene (3) Aniline (4) Benzene hexachloride

Description : Chemical name of Gammaxane is - (1) Toluene (2) Chloro benzene (3) Aniline (4) Benzene hexachloride

Last Answer : (4) Benzene hexachloride Explanation: Gammexane is an insecticide that is the gamma isomer of benzene hexachloride. It is also known as lindane. Benzene hexachloride is any of several stereoisomers of 1,2,3,4,5,6- hexachlorocyclohexane formed by the lightinduced addition of chlorine to benzene.

Polythene is polymer of – (1) Ethylene (2) Propylene (3) Acetylene (4) Aniline

Description : Polythene is polymer of – (1) Ethylene (2) Propylene (3) Acetylene (4) Aniline

Last Answer : (1) Ethylene Explanation: The ingredient or monomer is ethylene (IUPAC name ethene). It has the formula C2H4, consisting of a pair of CH2 groups connected by a double bond. Because the catalysts are highly reactive, the ethylene must be of high purity. Typical specifications are H2SO4

'Red Ink' is prepared from - (1) Phenol (2) Aniline (3) Congo redd (4) Eosin

Description : 'Red Ink' is prepared from - (1) Phenol (2) Aniline (3) Congo redd (4) Eosin

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Which of the following is a natural dye? (1) Crystal violet (2) Aniline blue (3) Alizarin (4) Phenolphthalein

Description : Which of the following is a natural dye? (1) Crystal violet (2) Aniline blue (3) Alizarin (4) Phenolphthalein

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Diesel index is defined as (A) (°API) × (Aniline Point, °F)/100 (B) (°API) × (Aniline Point, °C)/100 (C) (°API) × (100)/Aniline Point, °F (D) (°API) × (100)/Aniline Point, °C

Description : Diesel index is defined as (A) (°API) × (Aniline Point, °F)/100 (B) (°API) × (Aniline Point, °C)/100 (C) (°API) × (100)/Aniline Point, °F (D) (°API) × (100)/Aniline Point, °C

Last Answer : (A) (°API) × (Aniline Point, °F)/100

Aniline point is the (A) Characteristic property of diesel & lubricating oils (B) Measure of aromatic content of oil (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Aniline point is the (A) Characteristic property of diesel & lubricating oils (B) Measure of aromatic content of oil (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B

Aniline point test of an oil qualitatively indicates the __________ content of an oil. (A) Paraffin (B) Olefin (C) Aromatic (D) Naphthene

Description : Aniline point test of an oil qualitatively indicates the __________ content of an oil. (A) Paraffin (B) Olefin (C) Aromatic (D) Naphthene

Last Answer : (C) Aromatic

Illuminating characteristics of kerosene is expressed by its (A) Smoke point (B) Aniline point (C) Luminosity number (D) Aromatic content

Description : Illuminating characteristics of kerosene is expressed by its (A) Smoke point (B) Aniline point (C) Luminosity number (D) Aromatic content

Last Answer : (C) Luminosity number

High aniline point of diesel indicates that, it (A) Is highly aromatic (B) Has a large ignition delay (C) Is highly paraffinic (D) Has a low diesel index

Description : High aniline point of diesel indicates that, it (A) Is highly aromatic (B) Has a large ignition delay (C) Is highly paraffinic (D) Has a low diesel index

Last Answer : (C) Is highly paraffinic

Diesel index (an alternative index for expressing the quality of diesel) is (A) Determined by using a test engine (B) Not related to aniline point (C) Equal to cetane number plus 3 (D) All (A), (B) & (C)

Description : Diesel index (an alternative index for expressing the quality of diesel) is (A) Determined by using a test engine (B) Not related to aniline point (C) Equal to cetane number plus 3 (D) All (A), (B) & (C)

Last Answer : (C) Equal to cetane number plus 3