Which of the following is more basic than aniline?

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

Which of the following compounds is most basic? (a) Aniline (b) Benzylamine (c) Acetanilide (d) p-nitroaniline

Description : Which of the following compounds is most basic? (a) Aniline (b) Benzylamine (c) Acetanilide (d) p-nitroaniline

Last Answer : Benzylamine

Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely miscible. It means that the aniline point of the diesel is __________ the room temperature. (A) More than (B) Less than (C) Same as (D) Either more or less; depends on the room temperature

Description : Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely miscible. It means that the aniline point of the diesel is __________ the room temperature. (A) ... (B) Less than (C) Same as (D) Either more or less; depends on the room temperature

Last Answer : (C) Same as

Pkb of aniline is more than that of methyl amine.

Description : Pkb of aniline is more than that of methyl amine.

Last Answer : In aniline, the lone pair of electrons on the N-atom are delocalized over the benzene ring. As a result electron density on the nitrogen decreases. In contrast in CH2NH2 , + I effect of CH3 ... , aniline is a weaker base than methylamine and hence its Pkb value is higher than that of methylamine.

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

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

Last Answer : The basicity of aniline is less than that of cyclohexylamine. This is due to : A. `-R` effect ... effect of `-NH_(2)` group D. hyperconjugation effect

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

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

Description : 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

Last Answer : Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P ... of the following reaction sequence is (are) B. C. D.

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

Description : 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

Last Answer : The major product Y in the following sequence of reaction is: Aniline `overset((i) NaNO_(2)//HCl,273K)underset((ii)CuCN ... H_(2)O)to (Y)` A. B. C. D.

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

Last Answer : Which reaction sequence would be best to prepare 3-chloro-aniline form benzene A. ... . nitration, reduction, acetylation, chlorination, hydrolysis

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

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

Last Answer : Chloroform when treated aniline and alcoholic KOH, the product formed is? A. Phenyl cyanide B. Phenyl isocyanide C. Chlorobenzene D. Phenol

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 give aniline by reduction of nitrobenzene?

Description : Which of the following give aniline by reduction of nitrobenzene?

Last Answer : 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`

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

Last Answer : (4) Eosin Explanation: Eosin is a dye used to prepare red ink. Eosin Y is a xanthene dye and is used for the differential staining of connective tissue and cytoplasm.

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

Last Answer : (3) Alizarin Explanation: Alizarin or 1,2- dihydroxyanthraquinone (also known as Mordant Red 11 and Turkey Red is an organic compound with formula C14H8O4 that has been used throughout history as a ... of the madder genus. In 1869, it became the first natural pigment to be duplicated synthetically.

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

Aniline point of the diesel is a measure of its __________ content. (A) Aromatic (B) Paraffin (C) Olefin (D) Naphthene

Description : Aniline point of the diesel is a measure of its __________ content. (A) Aromatic (B) Paraffin (C) Olefin (D) Naphthene

Last Answer : (B) Paraffin

Which of the following tests is not done for transformer oil? (A) Flash point and acid value (B) Aniline point (C) Dielectric strength (D) Copper strip corrosion test

Description : Which of the following tests is not done for transformer oil? (A) Flash point and acid value (B) Aniline point (C) Dielectric strength (D) Copper strip corrosion test

Last Answer : (B) Aniline poin

Aniline point is a property of the (A) Diesel (B) LPG (C) Naphtha (D) Gasoline

Description : Aniline point is a property of the (A) Diesel (B) LPG (C) Naphtha (D) Gasoline

Last Answer : (C) Naphtha

A multigrade lubricating oil means an oil having high (A) Viscosity index (B) Viscosity (C) Aniline point (D) Flash point

Description : A multigrade lubricating oil means an oil having high (A) Viscosity index (B) Viscosity (C) Aniline point (D) Flash point

Last Answer : (A) Viscosity index

Aniline point of high speed diesel may be about __________ °C. (A) 35 (B) 70 (C) 105 (D) 150

Description : Aniline point of high speed diesel may be about __________ °C. (A) 35 (B) 70 (C) 105 (D) 150

Last Answer : (B) 70

Aniline point is the temperature at which (A) Equal weight of diesel & the aniline are completely miscible (B) Equal weight of aniline & the test sample are completely miscible (C) Equal volume of aniline & the test sample are completely miscible (D) Aniline vaporises

Description : Aniline point is the temperature at which (A) Equal weight of diesel & the aniline are completely miscible (B) Equal weight of aniline & the test sample are completely miscible (C) Equal volume of aniline & the test sample are completely miscible (D) Aniline vaporises

Last Answer : (C) Equal volume of aniline & the test sample are completely miscible

High aniline point of a petrofuel (say diesel) indicates that (A) It is highly aromatic in nature (B) It is highly paraffinic in nature (C) It has a very low diesel index (D) Its ignition quality is very poor

Description : High aniline point of a petrofuel (say diesel) indicates that (A) It is highly aromatic in nature (B) It is highly paraffinic in nature (C) It has a very low diesel index (D) Its ignition quality is very poor

Last Answer : (B) It is highly paraffinic in nature

Which of the following is not an important property of fuel oil/furnace oil? (A) Sulphur content (B) Viscosity (C) Aniline point (D) Flash point

Description : Which of the following is not an important property of fuel oil/furnace oil? (A) Sulphur content (B) Viscosity (C) Aniline point (D) Flash point

Last Answer : (C) Aniline point

By which method aniline can be purified?

Description : By which method aniline can be purified?

Last Answer : By steam distillation.

How is aniline distinguished from N-methyl aniline ?

Description : How is aniline distinguished from N-methyl aniline ?

Last Answer : Ans.—On adding CHCl3 & KOH , aniline gives offensive smell forming isocyanide compound whereas N-methyle aniline not.

How can tri substitution of Bromine be prevented in aniline ? OR How can we prepare mono bromo aniline ?

Description : How can tri substitution of Bromine be prevented in aniline ? OR How can we prepare mono bromo aniline ?

Last Answer : Because of high reactivity of aromatic amines substitution tends to occur at o- and ppositions. Monosubstituted aniline can be prepared by protecting — NH2 group by acetylation with acetic anhydride, then carrying out substitution followed by hydrolysis of substituted amide.

Aniline gets coloured on standing in air for a long time. Why ?

Description : Aniline gets coloured on standing in air for a long time. Why ?

Last Answer : Due to strong electron-donating effect (+ R effect) of NH2 gp, the electron density on the benzene ring increases. As a result, aniline is easily oxidised on standing in air for a long time to form coloured products.

Although — NH2 gp is an ortho and para directing gp, nitration of aniline gives along with ortho and para, meta derivatives also.

Description : Although — NH2 gp is an ortho and para directing gp, nitration of aniline gives along with ortho and para, meta derivatives also.

Last Answer : Nitration is carried out with a mixture of Conc. NO3 + Conc. H2 SO4 (nitrating mix). In the presence of these acids, most of aniline gets protonated to form anilinium ion. Therefore, in the ... is m-directing and deactivating hence a mixture of all three-ortho, para and meta derivatives is formed.

The DNA fragments separated on an agarose gel can be visualised after staining with (a) acetocarmine (b) aniline blue (c) ethidium bromide (d) bromophenol blue.

Description : The DNA fragments separated on an agarose gel can be visualised after staining with (a) acetocarmine (b) aniline blue (c) ethidium bromide (d) bromophenol blue.

Last Answer : (c) ethidium bromide

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

Benzenediazonium chloride reacts with hypophosphorus acid to form : (a) Phenol (b) Benzaldehyde (c) Aniline (d) Benzene

Description : Benzenediazonium chloride reacts with hypophosphorus acid to form : (a) Phenol (b) Benzaldehyde (c) Aniline (d) Benzene

Last Answer : Benzene

Chlorobenzene can be prepared by treatment of aniline with (a) Cuprous chloride (b) Chlorine in the presence of UV light (c) Nitrous acid followed by treatment with CuCl (d) Chlorine in the presence of FeCl3

Description : Chlorobenzene can be prepared by treatment of aniline with (a) Cuprous chloride (b) Chlorine in the presence of UV light (c) Nitrous acid followed by treatment with CuCl (d) Chlorine in the presence of FeCl3

Last Answer : Nitrous acid followed by treatment with CuCl

Bromobenzene can be prepared by treating aniline with (a) Conc HBr (b) Br2/FeBr3 (b) CuBr (d) Nitrous acid then CuBr

Description : Bromobenzene can be prepared by treating aniline with (a) Conc HBr (b) Br2/FeBr3 (b) CuBr (d) Nitrous acid then CuBr

Last Answer : Nitrous acid then CuBr

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

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

Last Answer : Phenol

Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C

Description : Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C

Last Answer : 0°C to 10°C

Which of the following reagents is used to prepare benzenediazoniumchloride from aniline?(a) NaNO2 + HCl(b) LiAlH4(c) NH2NH2 + KOH(d) NaOH

Description : Which of the following reagents is used to prepare benzenediazonium chloride from aniline? (a) NaNO2 + HCl (b) LiAlH4 (c) NH2NH2 + KOH (d) NaOH

Last Answer : NaNO2 + HCl

Which of the following reagents does not react with aniline? (a) Acetyl chloride (b) Acetic anhydride (c) Ammonia (d) Nitrous acid

Description : Which of the following reagents does not react with aniline? (a) Acetyl chloride (b) Acetic anhydride (c) Ammonia (d) Nitrous acid

Last Answer : Ammonia