Explanation

In complete combustion, methane (CH₄) reacts with oxygen (O₂) to form carbon dioxide and water, releasing heat:

CH₄ + 2O₂ → CO₂ + 2H₂O

Explanation

Explanation

Key Points:

• CnH2n is the general formula for alkenes.
• CnH2n+1 is the general formula for alcohols.
• CnH2n+2 is the general formula for alkanes.

Explanation

• The general formula for alkanes is CnH2n+2, where n is the number of carbon atoms in the molecule.
• This formula represents the saturated hydrocarbons, also known as paraffins.

Key Points:

• CnH2n is the general formula for alkenes
• CnH2n+1 is the general formula for alcohols

Explanation

The products of combustion include:

Hydrogen gas,

Carbon dioxide,

Water vapor,

Heat and light.

In a complete combustion of a hydrocarbon (like methane or petrol), the fuel reacts with oxygen (O₂) to produce:

CO₂ + H₂O + Heat

Example:  

CH₄ + 2O₂ → CO₂ + 2H₂O + energy

Explanation

• When fuel is burned, carbon dioxide gas (CO₂) is primarily produced.
• The combustion of fuel, particularly hydrocarbons, typically results in the formation of carbon dioxide and water vapor (H₂O).

Explanation

Explanation

The functional group for a ketone is a carbonyl group (C=O), where the carbonyl carbon is bonded to two other carbon atoms.

The general formula for a ketone is R–C(=O)–R' or CnH2nO;

Where the central carbon atom is double-bonded to an oxygen atom and single-bonded to two alkyl or aryl groups (R and R'). The simplest ketone is propanone (acetone), with the formula C₃H₆O.  

Explanation

Complete oxidation of methane (CH₄) in the presence of oxygen produces carbon dioxide (CO₂) and water (H₂O) with the release of energy (combustion reaction):

CH₄ + 2O₂ → CO₂ + 2H₂O

Explanation

The oxidation of a tertiary alcohol generally gives no reaction under normal conditions 

No alpha hydrogen:

The carbon bonded to the -OH group (the alpha-carbon) in a tertiary alcohol has no hydrogen atoms attached to it, as it is already bonded to three other carbon groups. 

Mechanism requires an alpha hydrogen:

Standard oxidation reactions of alcohols involve the removal of a hydrogen atom from the alpha-carbon and the formation of a C=O double bond. 

Carbon-carbon bond breakage:

To oxidize a tertiary alcohol, a C-C bond would need to be broken, which requires much harsher conditions than those used for primary or secondary alcohols.