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

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
by

1 Answer

Answer :

primary amines
by

Related questions

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

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

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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)`

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)

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

Why the presence of a base is essential in the ammonolysis of alkyl halides ?

Description : Why the presence of a base is essential in the ammonolysis of alkyl halides ?

Last Answer : During ammonolysis of alkyl halides, the acid liberated during the reaction combines with the amine formed to form amine salt. To liberate free amine from the amine salt, a base is needed.

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

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Last Answer : Alcohols

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Last Answer : They do not form salts with acids

Which of the following statements concerning SN2 reactions of alkyl halides is not correct? (a) The rate of reaction depends on the concentration of the nucleophile. (b) The rate of reaction depends on the concentration of the alkyl halide. (c) The rate of reaction of a particular alkyl bromide depends on the steric accessibility of the carbon of the C-Br bond. (d) All alkyl iodides react more rapidly than all alkyl chlorides

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Last Answer : All alkyl iodides react more rapidly than all alkyl chlorides

Which alkyl halides react most readily by nucleophilic substitution? (a) CH3CH2Cl (b) CH3CH2I (c) CH3CH2Br (d) CH3CH2F

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Last Answer : CH3CH2I

Which of the following does not react with acyl chlorides to form amides : (a) ammonia (b) 1° amine (c) 2° amine (d) 3° amine

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Last Answer : 3° amine

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

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Last Answer : primary aromatic amines

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

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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. 

Aryl halides are less reactive towards nucleophilic substitution as compared to alkyl halides due to (a) Inductive effect (b) Resonance stabilization (c) Tautomerism (d) Stereoisomerism

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Last Answer : Resonance stabilization

Grignard reagents do not show any reaction with (a) Alkoxyalkanes (b) Alkanones (c) Alkyl alkanoates (d) Acyl halides

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Last Answer : Alkoxyalkanes

Which of the following is not correct concerning substitution and elimination reactions of alkyl halides? (a) The electrophile replaces the leaving group. (b) Compounds containing electron-donating groups bonded to an sp3 hybridized carbon undergo substitution and elimination reactions. (c) The electronegative atom is replaced by another atom or group in substitution reactions. (d) (a) and (b)

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Last Answer : (a) and (b)

Alkyl halides undergo (a) Electrophilic substitution reactions (b) Electrophilic addition reactions (c) Nucleophilic substitution reactions (d) Nucleophilic addition reactions

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Amides undergo hydrolysis under acidic conditions to give (a) Carboxylic acid and amine (b) Carboxylic acid and ammonium ion (c) Carboxylate ion and ammonium ion (d) Carboxylate ion and amine

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Last Answer : Carboxylic acid and ammonium ion

Ammonia is excreted as ammonium salts during metabolic acidosis but the majority is excreted as (A) Phosphates (B) Creatine (C) Uric acid (D) Urea

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Last Answer : Answer : D

The unwanted amino acids abstracted from the tissues are either used up by the tissue or in the liver converted into (A) Ammonia (B) Urea (C) Ammonium salts (D) Uric acid

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The order of reactivities of the following alkyl halides for a `S_(N^(2))` reaction is :

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Which of the following alkyl halides is hydrolysed by `S_(N^(1))` mechanism?

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Which of the alkyl chlorides listed below undergoes dehydrohalogenation inthe presence of a strong base to give 2-pentene as the only alkene product?(a) 1-chloropentane(b) 2-chloropentane(c) 3-chloropentane(d) 1-chloro-2-methylbutane

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Last Answer : A secondary alkyl bromide

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Last Answer : A primary alkyl bromide

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

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