Quartenry ammonium salt after Hofmann elimination gives---
a. Alcohol
b. Alkene
c. Alkyne
d. Ammmonia

1 Answer

Answer :

b. Alkene

Related questions

Description : A compound reacts with steam in the presence of concentrated H2SO4 to give isopropyl alcohol. The compound could be (a) Alkane (b) Alkyne (c) Alkene (d) Allene

Last Answer : Alkene

Description : The higher reactivity of an alkene or alkyne, as compared to an alkane, is due to (a) sigma bonds (b) pi bonds (c) hydrogen bonds (d) None of these

Last Answer : pi bonds

Description : What is the name given to a compound containing only carbons and hydrogens and having the maximum number of hydrogens in the molecule? (a) alkene (b) unsaturated hydrocarbon (c) saturated hydrocarbon (d) alkyne

Last Answer : saturated hydrocarbon

Description : Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane

Last Answer : ANSWER: Z -- AN ALKANE

Description : CONDENSED STRUCTURE OF THE FOLLOWING1. 5,5 – diethyl – 3,3 – dimethyl – 1 - octyne2. 2,4,4,6 – tetraethyl – 3,3 – nondiene3. 1,1,4,4 – tetramethylheptaneIDENTIFY IF ITS ALKANE ALKYNE ALKENE?

Last Answer : ℤ.

Description : Only one of the following amines will lose its nitrogen atom as trimethyl amine by repeated Hofmann elimination reactions:

Last Answer : Only one of the following amines will lose its nitrogen atom as trimethyl amine by repeated Hofmann elimination reactions: A. B. C. D.

Description : Which of the following drugs undergoes ‘Hofmann’ elimination: A. Succinylcholine B. Pancuronium C. Vecuronium

Last Answer : D. Atracurium

Description : An alcohol (A) on heating with concentrated `H_(2)SO_(4)` gives alkene (B) as major product and (B) can shown the geometrical isomerism . The compound

Last Answer : An alcohol (A) on heating with concentrated `H_(2)SO_(4)` gives alkene (B) as major product and (B) can ... 2) CH (OH) CH_(3)` D. All of the above

Description : Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point? (a) a tertiary amine (b) a quaternary ammonium salt (c) an alcohol (d) an ether

Last Answer : a quaternary ammonium salt

Description : The appearance of a silver mirror in Tollens' test indicates the presence of : (a) an aldehyde (b) a ketone (c) an alcohol (d) an alkene

Last Answer : an aldehyde

Description : The mechanism of dehydration of an alcohol to give an alkene involves formation of : (a) Carbonium ions (b) Carbanions (c) Free radicals (d) Carbenes

Last Answer : Carbonium ions

Description : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in ammonium hydroxide

Last Answer : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as ... (3-)` D. `SO_(4)^(2-)`

Description : When vapours of an alcohol are passed over hot reduced copper, it gices an alkene. The alcohol is

Last Answer : When vapours of an alcohol are passed over hot reduced copper, it gices an alkene. The alcohol is A. Primary B. Secondary C. Tertiary D. None of these

Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co

Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture

Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co

Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture

Description : ----rearrangement involves alpha diketone. a. Wolf b. Schmidt c. Hofmann d. Curtius

Last Answer : a. Wolf

Description : What is meant by ammonium salt ?

Last Answer : The salt formed in reaction with ammonia ( NH3) is called ammonium salt.

Description : The scientific name for common salt is - (1) Sodium hydroxide (2) Sodium chloride (3) Ammonium chloride (4) Sodium hydrogencarbonate

Last Answer : (2) Sodium chloride Explanation: Common salt is known as sodium chloride. It is an important raw material for various materials of daily use, such as sodium hydroxide, baking soda, washing soda etc.

Description : The chemical name of 'Common salt' is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Last Answer : (1) Sodium chloride Explanation: Sodium chloride, also known as salt, common salt, table salt or halite, is an ionic compound with the formula NaCl, representing equal proportions of sodium and ... each ion is surrounded by six ions of, the opposite charge as expected on electrostatic grounds.

Description : The chemical name of ‘Common salt’ is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Last Answer : Sodium chloride

Description : Ammonium acetate on strong heating gives (a) Urea (b) Formamide (c) Uric acid (d) Acetamide

Last Answer : Acetamide

Description : What is Alkyne ?

Last Answer : Alkynes are unsaturated hydrocarbons with carbon-carbon binding. Its common signal is CnH2n . Such as ethin ( C2H5), propane ( C3H6) .

Description : What is Alkyne ?

Last Answer : Unsaturated hydrocarbons with carbon-carbon triple bonds are called alkynes. Its common signal is CnH2n-2 . Such as ethane ( CH CH) .

Description : What are the common signs of alkyne ?

Last Answer : The most common sign of alkyne is CnH2n-2, where n is a positive integer and n ≠ 0 .

Description : What are the common signs of alkyne ?

Last Answer : : The most common sign of an alkyne is CnH2n, where n is a positive integer.

Description : What is marginal alkyne ?

Last Answer : Alkynes that have only one hydrogen attached to their carbon atoms are called marginal alkynes. Examples: ethane , propane.

Description : What is Alkyne or Olefins ?

Last Answer : Hydrocarbons that have two carbon atoms joined together by a double bond in a carbon chain are called alkynes or olefins.

Description : What is Alkyne ?

Last Answer : Hydrocarbons that have at least one carbon-carbon double bond ( > C = C

Description : How is alkyne prepared ?

Last Answer : Preparation of Alkyne: From Ethyl Chloride: Ethylene , sodium chloride and water are produced by heating aqueous solution of sodium hydroxide with ethyl chloride. CH3-CH2Cl + NaOH -> CH2 = CH2 + NaCl + ... heating extra concentrated sulfuric acid with ethanol. CH3-CH2-OH -> H2SO4-> CH2 = CH2 + H2O

Description : How is alkyne prepared ?

Last Answer : Preparation of alkyne: From calcium carbide: Adding water to calcium carbide produces ethane and calcium hydroxide. CaC2 + 2H20 -> CH = _CH + Ca (OH) 2

Last Answer : Alken : Saturated Of hydrocarbons Carbon In chains Carbon Atoms Single Covalent In bondage Bound Stays And Of carbon The rest Connectivity By Full Yes , to them Alken To say Is 3 Alkin : ... Added Unsaturated To hydrocarbons Alkin Says. Alkyne : Tri - bonded Unsaturated To hydrocarbons Alkyne Says.

Description : Which alkyne yields propanoic acid as the only product upon treatment with ozone followed by hydrolysis? (a) 1-Butyne (b) 2-Hexyne (c) 1-Pentyne (d) 3-Hexyne

Last Answer : 3-Hexyne

Description : Which of the following statements correctly describes the general reactivity of alkynes? (a) An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. (b) The σ bonds ... fail to undergo electrophilic addition reactions. (d) Alkynes are generally more reactive than alkenes.

Last Answer : Alkynes are generally more reactive than alkenes.

Description : Which of the following improperly describes the physical properties of an alkyne? (a) relatively nonpolar (b) nearly insoluble in water (c) less dense than water (d) insoluble in most organic solvents

Last Answer : insoluble in most organic solvents

Description : Cyclohexanone is an example of: w) an aldehyde x) a carboxylic acid y) an alkyne z) a ketone

Last Answer : ANSWER: Z -- A KETONE 

Description : A compound of formula C6H12 does not react with concentrated sulfuric acid. The compound could be (a) Alkane (b) Cycloalkane (c) Alkene (d) Cycloalkene

Last Answer : Cycloalkane

Description : Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the 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

Last Answer : 3-chloropentane

Description : The hydroboration-oxidation reaction can be characterized as the _________ to an alkene. (a) anti-Markovnikov syn addition of water (b) anti-Markovnikov anti addition of water (c) Markovnikov syn addition of water (d) Markovnikov anti addition of water

Last Answer : anti-Markovnikov syn addition of water

Description : Which of the following is not a possible reaction of a carbocation? (a) addition of a nucleophile (b) rearrangement to a more stable carbocation (c) addition of a proton to form an alkane (d) loss of a β-hydrogen to form an alkene

Last Answer : addition of a proton to form an alkane

Description : Which one of the following is not a metal catalyst for the hydrogenation of an alkene? (a) Pd (b) Pt (c) Na (d) Ni

Last Answer : Na

Description : Which of the following molecular formulas will correspond to an alkene with two double bonds? (a) C4H10 (b) C5H12 (c) C6H10 (d) C8H16

Last Answer : C6H10

Description : Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the 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

Last Answer : 3-chloropentane

Description : Which of the following is the most stable alkene? (a) trans-3-hexene (b) cis-3-hexene (c) 1-hexene (d) (Z)-3-hexene

Last Answer : trans-3-hexene

Description : Combustion of an alkene with sufficient oxygen will produce (a) carbon dioxide and water (b) carbon monoxide and water (c) only carbon dioxide (d) only carbon monoxide

Last Answer : carbon dioxide and water

Description : The disappearance of the purple color of KMnO4 in its reaction with alkene is known as (a) Markovnikov test (b) Grignard test (c) Baeyer test (d) Wurtz test

Last Answer : Baeyer test

Description : The carbon atoms involved in the double bond of an alkene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Last Answer : sp2 hybridized

Description : A compound of formula C3H8 does not react with bromine in CCl4 in the dark. The compound could be (a) Alkane (b) Cycloalkane (c) Alkene (d) Cycloalkene

Last Answer : Alkane

Description : What is the general formula for the alkene series? 

Last Answer : ANSWER: CnH2n

Description : Which of the following phrases is NOT appropriate for a description of benzene? w) characteristic reactivity of an alkene x) volatile liquid y) aromatic hydrocarbon z) resonance hybridization

Last Answer : ANSWER: W -- CHARACTERISTIC REACTIVITY OF AN ALKENE

Description : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced are

Last Answer : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of ... moles of NaOH and one mole of `Br_(2)`