Which of the following is least soluble in water? (a) Methylamine (b) Trimethylamine (c) Dimethylamine (d) Aniline

Which of the following is least soluble in water?
(a) Methylamine
(b) Trimethylamine
(c) Dimethylamine
(d) Aniline
by

1 Answer

Answer :

Methylamine
by

Related questions

Which of the following compounds does not react with acetyl chloride? (a) Methylamine (b) Dimethylamine (c) Aniline (d) Trimethylamine

Description : Which of the following compounds does not react with acetyl chloride? (a) Methylamine (b) Dimethylamine (c) Aniline (d) Trimethylamine

Last Answer : Trimethylamine

Which amine is NOT soluble in water? (a) Methylamine (b) Dimethylamine (c) Trimethylamine (d) All are water-soluble

Description : Which amine is NOT soluble in water? (a) Methylamine (b) Dimethylamine (c) Trimethylamine (d) All are water-soluble

Last Answer : All are water-soluble

Which of the following is most basic? (a) Ammonia (b) Methylamine (c) Dimethylamine (d) Trimethylamine

Description : Which of the following is most basic? (a) Ammonia (b) Methylamine (c) Dimethylamine (d) Trimethylamine

Last Answer : Dimethylamine

Acetonitrile undergoes reduction with LiAlH4 to form : (a) Methylamine (b) Dimethylamine (c) Ethylamine (d) Trimethylamine

Description : Acetonitrile undergoes reduction with LiAlH4 to form : (a) Methylamine (b) Dimethylamine (c) Ethylamine (d) Trimethylamine

Last Answer : Ethylamine

Why is aniline soluble in aqueous HCl?

Description : Why is aniline soluble in aqueous HCl?

Last Answer : Why is aniline soluble in aqueous HCl?

Pyridine is less basic than trimethylamine because the lone-pair of electrons on N-atom in pyridine resides in (a) sp2 hybrid orbital (b) sp hybrid orbital (c) sp3 hybrid orbita(d) p-orbitall

Description : Pyridine is less basic than trimethylamine because the lone-pair of electrons on N-atom in pyridine resides in (a) sp2 hybrid orbital (b) sp hybrid orbital (c) sp3 hybrid orbital (d) p-orbital

Last Answer : sp2 hybrid orbita

Which formulation of 2,4-D has fastest ab sorption by crop plants? a). Ethyl ester b). Dimethylamine c). Na salt d). All

Description : Which formulation of 2,4-D has fastest ab sorption by crop plants? a). Ethyl ester b). Dimethylamine c). Na salt d). All

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Phenol is (a) stronger acid than acetic acid (b) weaker acid than acetic acid (c) stronger base than methylamine (d) weaker base than methylamine

Description : Phenol is (a) stronger acid than acetic acid (b) weaker acid than acetic acid (c) stronger base than methylamine (d) weaker base than methylamine

Last Answer : weaker acid than acetic acid

Glycine reacts with nitrous acid to form : (a) Glycollic acid (b) Diketopiperazine (c) Methylamine (d) Ethyl alcoho

Description : Glycine reacts with nitrous acid to form : (a) Glycollic acid (b) Diketopiperazine (c) Methylamine (d) Ethyl alcoho

Last Answer : Glycollic acid

Methylamine reacts with nitrous acid to form (a) CH3CH3 (b) CH3OH (c) CH3NO2 (d) CH3CH2OH

Description : Methylamine reacts with nitrous acid to form (a) CH3CH3 (b) CH3OH (c) CH3NO2 (d) CH3CH2OH

Last Answer : CH3OH

Acetamide reacts with Br2/NaOH to give (a) Methylamine (b) Urea (c) Ethylamine (d) Acetyl bromide

Description : Acetamide reacts with Br2/NaOH to give (a) Methylamine (b) Urea (c) Ethylamine (d) Acetyl bromide

Last Answer : Methylamine

Which of the following will have the highest boiling point? (a) Methylamine (b) Diethylamine (c) Ethylamine (d) Triethylamine

Description : Which of the following will have the highest boiling point? (a) Methylamine (b) Diethylamine (c) Ethylamine (d) Triethylamine

Last Answer : Triethylamine

The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of the following best describes the charge on the nitrogen atom? (a) slightly positive (b) uncharged (c) slightly negative (d) –1

Description : The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of the following best describes the charge on the nitrogen atom? (a) slightly positive (b) uncharged (c) slightly negative (d) –1

Last Answer : slightly negative

Which of the following reagents will react with acetamide to form methylamine? (a) LiAlH4 (b) Br2/NaOH (c) PCl5 (d) H2/Ni

Description : Which of the following reagents will react with acetamide to form methylamine? (a) LiAlH4 (b) Br2/NaOH (c) PCl5 (d) H2/Ni

Last Answer : Br2/NaOH

Acetamide on reduction with LiAlH4 gives (a) Acetaldehyde (b) Ethylamine (c) Acetone(d) Methylamine

Description : Acetamide on reduction with LiAlH4 gives (a) Acetaldehyde (b) Ethylamine (c) Acetone (d) Methylamine

Last Answer : Ethylamine

Acetamide can be converted into methylamine by (a) P2O5 (b) Br2/NaOH (c) PCl5 (d) LiAlH4

Description : Acetamide can be converted into methylamine by (a) P2O5 (b) Br2/NaOH (c) PCl5 (d) LiAlH4

Last Answer : Br2/NaOH

. Acetamide on heating with P2O5 gives : (a) Methylamine (b) Ethylamine (c) Methyl cyanide (d) None of these

Description : Acetamide on heating with P2O5 gives : (a) Methylamine (b) Ethylamine (c) Methyl cyanide (d) None of these

Last Answer : Methyl cyanide

The nitrogen atom in the following cyclic compounds can be removed as trimethylamine by successive Hoffmann eliminations (involving exhaustive methyla

Description : The nitrogen atom in the following cyclic compounds can be removed as trimethylamine by successive Hoffmann eliminations (involving exhaustive methyla

Last Answer : The nitrogen atom in the following cyclic compounds can be removed as trimethylamine by successive Hoffmann eliminations ... is : A. B. C. D.

Which of the following is least soluble in water? (a) CH3OH (b) CH3CH2OH (c) CH3SH (d) HOCH2CH2OH

Description : Which of the following is least soluble in water? (a) CH3OH (b) CH3CH2OH (c) CH3SH (d) HOCH2CH2OH

Last Answer : CH3SH

Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Description : Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Last Answer : Ethyl chloride

Which of the following compounds is the least soluble in water? (a) HOCH2CH2OH (b) CH3CH2CH2OH (c) CH3CH2OH (d) CH3CH2CH2CH2OH

Description : Which of the following compounds is the least soluble in water? (a) HOCH2CH2OH (b) CH3CH2CH2OH (c) CH3CH2OH (d) CH3CH2CH2CH2OH

Last Answer : CH3CH2CH2CH2OH

Which of the following would be least soluble in water? w) Carbon Tetrachloride x) Sodium Oxide y) Magnesium Bromide z) Potassium Phosphate

Description : Which of the following would be least soluble in water? w) Carbon Tetrachloride x) Sodium Oxide y) Magnesium Bromide z) Potassium Phosphate

Last Answer : ANSWER: W -- CARBON TETRACHLORIDE 

Acetamide is treated separately with the following reagens. Which one of these given methylamine?

Description : Acetamide is treated separately with the following reagens. Which one of these given methylamine?

Last Answer : Acetamide is treated separately with the following reagens. Which one of these given methylamine? A. `PCI_(5)` ... ` D. Hot concentrated `H_(2)SO_(4)`

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 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

Aniline reacts with bromine water to form (a) Bromobenzene (b) m-Bromoaniline (c) 2,4,6-Tribromoaniline (d) o- plus p-Bromoaniline

Description : Aniline reacts with bromine water to form (a) Bromobenzene (b) m-Bromoaniline (c) 2,4,6-Tribromoaniline (d) o- plus p-Bromoaniline

Last Answer : 2,4,6-Tribromoaniline

Which of the following statements is correct about aniline? (a) is weak acid. (b) diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid. (c) can be nitrated with concentrated HNO3 to form p-nitroaniline. (d) gives an intense green color with a suspension of bleaching powder in water

Description : Which of the following statements is correct about aniline? (a) is weak acid. (b) diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid. (c) can be nitrated with ... p-nitroaniline. (d) gives an intense green color with a suspension of bleaching powder in water

Last Answer : diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid.

Which of the following alcoshols is the least soluble in water?

Description : Which of the following alcoshols is the least soluble in water?

Last Answer : Which of the following alcoshols is the least soluble in water? A. Ethanol B. 1-Propanol C. 1-Butanol D. 1-Pentanol

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.

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.

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.

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.

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

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 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

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

Aniline undergoes oxidation with Na2Cr2O7/H2SO4 to give (a) Schiff's base (b) p-Benzoquinone (c) Phenol (d) Benzoic acid

Description : Aniline undergoes oxidation with Na2Cr2O7/H2SO4 to give (a) Schiff's base (b) p-Benzoquinone (c) Phenol (d) Benzoic acid

Last Answer : p-Benzoquinone

Aniline reacts with acetic anhydride to give : (a) N-Methylaniline (b) p-Aminoacetophenone (c) Acetanilide (d) m-Aminoacetophenone

Description : Aniline reacts with acetic anhydride to give : (a) N-Methylaniline (b) p-Aminoacetophenone (c) Acetanilide (d) m-Aminoacetophenone

Last Answer : Acetanilide

When aniline is heated with chloroform and alcoholic KOH, the product is (a) Benzonitrile (b) p-Chloroaniline (c) Phenylisocyanide (d) m-Chloroaniline

Description : When aniline is heated with chloroform and alcoholic KOH, the product is (a) Benzonitrile (b) p-Chloroaniline (c) Phenylisocyanide (d) m-Chloroaniline

Last Answer : Phenylisocyanide

Aniline reacts with nitrous acid at low temperatures to give (a) a N-nitrosoamine (b) a nitrile (c) a diazonium salt (d) a nitrite salt

Description : Aniline reacts with nitrous acid at low temperatures to give (a) a N-nitrosoamine (b) a nitrile (c) a diazonium salt (d) a nitrite salt

Last Answer : a diazonium salt