Aliphatic primary amines react with cold nitrous acid to form (a) Alcohols (b) Diazonium salts (c) Nitriles (d) Nitroalkanes

Aliphatic primary amines react with cold nitrous acid to form
(a) Alcohols
(b) Diazonium salts
(c) Nitriles
(d) Nitroalkanes
by

1 Answer

Answer :

Alcohols
by

Related questions

Which of the following statements is false about primary amines? (a) They can be prepared by reduction of nitriles with LiAlH4. (b) They do not form salts with acids(c) They react with ice-cold nitrous acid to form nitrogen gas.(d) They are basic and soluble in water

Description : Which of the following statements is false about primary amines? (a) They can be prepared by reduction of nitriles with LiAlH4. (b) They do not form salts with acids (c) They react with ice-cold nitrous acid to form nitrogen gas. (d) They are basic and soluble in water

Last Answer : They do not form salts with acids

The diazonium salts are the reaction products of the reaction of nitrous acid with (a) primary aliphatic amines (b) primary aromatic amines (c) secondary aliphatic amines (d) secondary aromatic amines

Description : The diazonium salts are the reaction products of the reaction of nitrous acid with (a) primary aliphatic amines (b) primary aromatic amines (c) secondary aliphatic amines (d) secondary aromatic amines

Last Answer : primary aromatic amines

Which of the following statements is false about secondary amines? (a) They react with chloroform and NaOH to form isocyanides. (b) They can be prepared by reduction of isocyanides. (c) They react with acid chlorides to give substituted amides. (d) They react with ice-cold nitrous acid to give nitrosamine (yellow oil)

Description : Which of the following statements is false about secondary amines? (a) They react with chloroform and NaOH to form isocyanides. (b) They can be prepared by reduction of isocyanides. (c) They react ... give substituted amides. (d) They react with ice-cold nitrous acid to give nitrosamine (yellow oil)

Last Answer : They react with chloroform and NaOH to form isocyanides.

Alkyl halides react with ammonia in the presence of base to form : (a) primary amines(b) nitrated alkyl halides(c) amides(d) quaternary ammonium salts

Description : Alkyl halides react with ammonia in the presence of base to form : (a) primary amines (b) nitrated alkyl halides (c) amides (d) quaternary ammonium salts

Last Answer : primary amines

Which of the following amines react with nitrous acid to form nitrosoamine? (a) Ethylamine (b) Triethylamine (c) Diethylamine (d) Isopropylamine

Description : Which of the following amines react with nitrous acid to form nitrosoamine? (a) Ethylamine (b) Triethylamine (c) Diethylamine (d) Isopropylamine

Last Answer : Diethylamine

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

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

When ammonia is added to an alkyl halide, in the presence of base : (a) primary amines form (b) amides form (c) nitrated alkyl halides form (d) quaternary ammonium salts form

Description : When ammonia is added to an alkyl halide, in the presence of base : (a) primary amines form (b) amides form (c) nitrated alkyl halides form (d) quaternary ammonium salts form

Last Answer : primary amines form

Why are amines always less acidic than comparable alcohols?

Description : Why are amines always less acidic than comparable alcohols?

Last Answer : Ans.--- Amines are less acidic than alcohols because of oxygen higher electronegative & smaller size. Therefore O-H breakes easily than N-H bond. 

Lucas test is used to determine the type of (a) alcohols (b) acids (c) amines (d) carbohydrates

Description : Lucas test is used to determine the type of (a) alcohols (b) acids (c) amines (d) carbohydrates

Last Answer : alcohols

The correct sequence regarding base strength of aliphatic amines in aqueous solution is:

Description : The correct sequence regarding base strength of aliphatic amines in aqueous solution is:

Last Answer : The correct sequence regarding base strength of aliphatic amines in aqueous solution is: A. `R_(3)N gt R_(2) NH gt ... gt R_(2)NH gt R_(3)N gt NH_(3)`

Assertion : Phenols are more acidic than aliphatic alcohols. Reason : Phenoxides are stabilized by resonance.

Description : Assertion : Phenols are more acidic than aliphatic alcohols. Reason : Phenoxides are stabilized by resonance.

Last Answer : Assertion : Phenols are more acidic than aliphatic alcohols. Reason : Phenoxides are stabilized by resonance. ... D. A is incorrect but R is correct

Secretion of gastrin is evoked by (A) Entry of food into stomach (B) Vagal stimulation (C) Lower aliphatic alcohols (D) All of these

Description : Secretion of gastrin is evoked by (A) Entry of food into stomach (B) Vagal stimulation (C) Lower aliphatic alcohols (D) All of these

Last Answer : Answer : D

Ethers react with cold concentrated H2SO4 to form (a) Oxonium salts (b) Alkenes (c) Alkoxides (d) Zwitterions

Description : Ethers react with cold concentrated H2SO4 to form (a) Oxonium salts (b) Alkenes (c) Alkoxides (d) Zwitterions

Last Answer : Oxonium salts

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

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

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.

Two aliphatic aldehydes P and Q react in th presence of aqueous `k_(2)CO_(3)` to give compound R, which upon treatment with HCN provides compound S. O

Description : Two aliphatic aldehydes P and Q react in th presence of aqueous `k_(2)CO_(3)` to give compound R, which upon treatment with HCN provides compound S. O

Last Answer : Two aliphatic aldehydes P and Q react in th presence of aqueous `k_(2)CO_(3)` to give compound R, which ... shown below: The compound S is B. C. D.

Two aliphatic aldehydes (P) and (Q) react in the presence of aqueous `K_(2)CO_(3)` to give compound (R ) which upon treatment with HCN gives compound(

Description : Two aliphatic aldehydes (P) and (Q) react in the presence of aqueous `K_(2)CO_(3)` to give compound (R ) which upon treatment with HCN gives compound(

Last Answer : Two aliphatic aldehydes (P) and (Q) react in the presence of aqueous `K_(2)CO_(3)` to give compound (R ) ... (P) and (Q), respectively, are: B. C. D.

Which herbicide group is photosynthesis inhibitor? a). Nitriles b). Carbamate c). Dicarboxylic acid d). Dinitroanilines

Description : Which herbicide group is photosynthesis inhibitor? a). Nitriles b). Carbamate c). Dicarboxylic acid d). Dinitroanilines

Last Answer : a). Nitriles

Which of the following amines will react with cyclohexanone to give enamine?

Description : Which of the following amines will react with cyclohexanone to give enamine?

Last Answer : Which of the following amines will react with cyclohexanone to give enamine? A. `CH_(3)NH_(2)` B. C. D.

Aromatic primary amines are not prepared by gabrial phthalimide synthesis. Why?

Description : Aromatic primary amines are not prepared by gabrial phthalimide synthesis. Why?

Last Answer : Ans:- Because aryl halides donot undergo nucleophilic substitution reaction. 

Give reasons:--- a. Primary amines are more basic than ammonia. b . Sec. amines are more basic than pr.amines.

Description : Give reasons:--- a. Primary amines are more basic than ammonia. b . Sec. amines are more basic than pr.amines.

Last Answer : Ans— a. In pr. Amines, alkyl group increases electron density on the N-atom making it more basic than ammo b. In sec. amine, there are two alkyl groups increase electron density on N-atom more than N-atom in pr. amines in which there is one alkyl group. 

Carbylamine test is given by (a) Primary amines (b) Secondary amines (c) Tertiary amines (d) None of these

Description : Carbylamine test is given by (a) Primary amines (b) Secondary amines (c) Tertiary amines (d) None of these

Last Answer : Primary amines

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`

Fatty acids react with trihydric alcohols to form

Description : Fatty acids react with trihydric alcohols to form

Last Answer : glycerides.

_______ is the process in which acids and bases react to form salts and water. (1) Neutralization (2) Electrolysis (3) Distillation (4) Hydrolysis

Description : _______ is the process in which acids and bases react to form salts and water. (1) Neutralization (2) Electrolysis (3) Distillation (4) Hydrolysis

Last Answer : (1) Neutralization Explanation: Neutralization is a process when acids and bases react to form salt and water.

From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous `ZnCl_(2)` is

Description : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous `ZnCl_(2)` is

Last Answer : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous ` ... . 2-Methylpropan-2-ol D. 2-Methylpropanol-1

Why is it that secondary alcohols can only undergo a single oxidation step in contrast to primary alcohols?

Description : Why is it that secondary alcohols can only undergo a single oxidation step in contrast to primary alcohols?

Last Answer : 1. Once the oxidation has reached the ketone stage, (primary alcohols on oxidation yield aldehyde where as secondary alcohols on oxidation yield a ketone), it is impossible to put more oxygen atoms on the relevant carbon atom without rupturing the backbone of the molecule.

Primary alcohols have boiling points that are _____________ the corresponding aldehydes. (a) Lower than (b) Higher than (c) About the same

Description : Primary alcohols have boiling points that are _____________ the corresponding aldehydes. (a) Lower than (b) Higher than (c) About the same

Last Answer : Higher than

Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have thehighest boiling point?(a) The amide(b) The alcohol(c) The ester(d) The carboxylic acid

Description : Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have the highest boiling point? (a) The amide (b) The alcohol (c) The ester (d) The carboxylic acid

Last Answer : The amide

Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is

Description : Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is

Last Answer : Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in ... reaction D. Reaction with `NH_(3)`

Inhibition of electron transfer in photosys tem II is the reason for herbicide action in a). Nitriles b). Ureas c). Both a and b d). None

Description : Inhibition of electron transfer in photosys tem II is the reason for herbicide action in a). Nitriles b). Ureas c). Both a and b d). None

Last Answer : d). None

Which herbicide group inhibit the lipid synthesis? a). Cyclohexanedione b). Acetanilides c). Uracils d). Nitriles

Description : Which herbicide group inhibit the lipid synthesis? a). Cyclohexanedione b). Acetanilides c). Uracils d). Nitriles

Last Answer : a). Cyclohexanedione

Which of the following is NOT a primary green house gas in the earth's atmosphere? (1) Methane (2) Ozone (3) Nitrous oxide (4) Hydrogen

Description : Which of the following is NOT a primary green house gas in the earth's atmosphere? (1) Methane (2) Ozone (3) Nitrous oxide (4) Hydrogen

Last Answer : (4) Hydrogen Explanation: Greenhouse gases are those that absorb and emit infrared radiation in the wavelength range emitted by Earth.

Lassaigne’s test is not shown by diazonium Salt. Why?

Description : Lassaigne’s test is not shown by diazonium Salt. Why?

Last Answer : On heating diazonium Salts loses Nitrogen and could not fuse with the sodium metal therefore diazonium salt do not show Positive Lassaigne’s test for nitrogen.

During neutralization reaction acids react with ........to form ........and water. (a) Metals ,Gas (b) Bases, Salt (c) Non-Metal , Salt (d)Acids ,Salts

Description : During neutralization reaction acids react with ........to form ........and water. (a) Metals ,Gas (b) Bases, Salt (c) Non-Metal , Salt (d)Acids ,Salts

Last Answer : (b) Bases, Salt

Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Description : Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Last Answer : both of the above

The acid-catalyzed dehydration mechanism for alcohols is best described as a(n) : (a) E1 . (b) E2 . (c) SN1 (d) SN2

Description : The acid-catalyzed dehydration mechanism for alcohols is best described as a(n) : (a) E1 . (b) E2 . (c) SN1 (d) SN2

Last Answer : E1 .

Which of the following classes of compounds is unreactive toward sulfuric acid? (a) Alkanes (b) Alcohols (c) Alkenes (d) Alkynes

Description : Which of the following classes of compounds is unreactive toward sulfuric acid? (a) Alkanes (b) Alcohols (c) Alkenes (d) Alkynes

Last Answer : Alkanes

A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Description : A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Last Answer : ANSWER: W -- ALKENES

Classify the following alcohols as primary, secondary, or tertiary :

Description : Classify the following alcohols as primary, secondary, or tertiary :

Last Answer : Classify the following alcohols as primary, secondary, or tertiary : A. `(CH_(3))_(3)C CH_(2)OH` B. `CH_(3)CH( ... `(CH_(3))_(2)C(OH)CH_(2)CH_(3)` D.

Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary alcohols Reason: The reaction leads to a

Description : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary alcohols Reason: The reaction leads to a

Last Answer : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary ... . Assertion is false, Reason is true

How many isomers of `C_(5)H_(11)OH` will be primary alcohols?

Description : How many isomers of `C_(5)H_(11)OH` will be primary alcohols?

Last Answer : How many isomers of `C_(5)H_(11)OH` will be primary alcohols? A. 5 B. 4 C. 2 D. 3

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

What is Aliphatic Amin ?

Description : What is Aliphatic Amin ?

Last Answer : The amine produced when ammonia ( NH 3) to hydrogen ( H) atoms are replaced by aliphatic hydrocarbon radicals such as alkyl radicals is called aliphatic amines .

What is the difference between aliphatic compounds and aromatic compounds ?

Description : What is the difference between aliphatic compounds and aromatic compounds ?

Last Answer : aliphatic compounds 1. Aliphatic compounds are mainly free-chain. 2. Aliphatic compounds can be saturated or unsaturated. 3. Aliphatic compounds have low carbon content. 4. Replacement reactions ... compounds. 5. Aromatic halides are relatively less active. . Aromatic hydroxy compounds are acidic.