Best answer: Which of the following can be used to prepare methane?

Methane is synthesized commercially by the distillation of bituminous coal and by heating a mixture of carbon and hydrogen. It can be produced in the laboratory by heating sodium acetate with sodium hydroxide and by the reaction of aluminum carbide (Al4C3) with water.

Which of the following reactions produce methane?

The primary chemical reactions of methane are combustion, steam reforming to syngas, and halogenation. In general, methane reactions are difficult to control.

Which of the following reactions preparation of methane is not possible?

From which we can conclude that methane cannot be prepared by Wurtz reaction, Kolbe’s reaction, and Sabatier – Senderens reaction. So, the correct answer is Option B.

Which of the following reactions can be used to prepare alkane?

Alkanes can be prepared by reduction of haloalkanes. One of these preparation methods of alkanes was given by Wurtz which is called Wurtz Reaction. When alkyl halide reacts with metallic sodium in presence of dry ether, it forms alkane with double the number of carbon atoms present in the alkyl halide of reactants.

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Which of the following reaction can be used to prepare alkenes?

Alkenes are generally prepared through β elimination reactions, in which two atoms on adjacent carbon atoms are removed, resulting in the formation of a double bond. Preparations include the dehydration of alcohols, the dehydrohalogenation of alkyl halides, and the dehalogenation of alkanes. Dehydration of alcohols.

What is alkanes general formula?

The general formula for the alkanes is C nH 2n +2, where n is the number of carbon atoms in the molecule.

Can methane be prepared by hydrogenation?

The catalytic hydrogenation (methanation) of CO and CO2 has been developed, mainly for the production of methane from coal as the source of the carbon oxides.

How is methane obtained from decarboxylation?

Sodium salts of carboxylic acids on heating with soda lime (mixture of sodiumhydroxide and calcium oxide) gives methane with one carbon atom less than the carboxylic acid.

Do alkanes react with KMnO4?

Alkanes and aromatic compounds do not react with potassium permanganate. KMnO4 oxidize the carbon-carbon double or triple bond.

What is Wurtz synthesis?

Wurtz reaction is a coupling reaction which is developed by Charles-Adolphe and used in organic chemistry and organometallic chemistry. … It is a method to synthesize higher alkanes by a reaction between alkyl halides and metallic sodium in the presence of dry ether.

Which of the following reaction can be used to prepare alkyne?

Preparation of Alkynes from Alkenes

In general, chlorine or bromine is used with an inert halogenated solvent like chloromethane to create a vicinal dihalide from an alkene. The vicinal dihalide formed is then reacted with a strong base and heated to produce an alkyne. The two-step reaction pathway is shown below.

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