C2H5OH is ethanol, which is an alcohol.

CH3CHO is an aldehyde, characterized by the -CHO functional group.

C4H10 is an alkane, which is a saturated hydrocarbon with single bonds only.

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond. C2H4 (ethylene) is an alkene.

Benzene is a classic example of an aromatic compound due to its cyclic structure and delocalized pi electrons.

Benzene is an aromatic hydrocarbon characterized by its stable ring structure and delocalized electrons.

Cis-2-butene has different spatial arrangements of groups around the double bond, making it a geometric isomer.

C4H10 can exist as butane and isobutane, which are structural isomers.

2-methylpropane is an isomer of butane, having the same molecular formula but a different structure.

2-Butanol is an isomer of butanol, differing in the position of the hydroxyl group.

C2H4 (ethylene) is an unsaturated hydrocarbon as it contains a double bond.

Benzene is an aromatic compound due to its cyclic structure and delocalized pi electrons.

Sodium benzoate is widely used as a food preservative to inhibit the growth of bacteria and fungi.

Sodium benzoate is widely used as a food preservative to prevent spoilage.

Aspartame is a widely used artificial sweetener found in many low-calorie foods and beverages.

H2O is a covalent compound formed by the sharing of electrons between hydrogen and oxygen atoms.

SiO2 is formed from Silicon, which is a p-block element.

NaCl is formed by sodium, which is an s-block element.

Iron reacts with oxygen to form Iron(III) oxide (Fe2O3) when sufficient oxygen is present.

Magnesium reacts with hydrochloric acid to form magnesium chloride (MgCl2) and hydrogen gas.

Magnesium reacts with oxygen to form magnesium oxide (MgO).

When magnesium reacts with water, it forms magnesium hydroxide, Mg(OH)2.

When sodium reacts with chlorine, sodium chloride (NaCl) is formed.

Sodium reacts with water to form sodium hydroxide (NaOH) and hydrogen gas.

Chlorhexidine is an antiseptic that is effective against a wide range of bacteria and is commonly used in medical settings.

Phenol is less acidic compared to the other acids listed due to the +M effect of the aromatic ring, which destabilizes the negative charge on the phenoxide ion.

Benzyl bromide is less reactive in nucleophilic substitution due to the resonance stabilization of the benzyl cation formed during the reaction.

Bromobenzene is least soluble in water due to its non-polar nature and the presence of the aromatic ring.

CCl3COOH is most acidic due to the strong -I effect of the -CCl3 group.

Benzaldehyde is most affected by the mesomeric effect due to the presence of the carbonyl group which can participate in resonance.