Acids and Bases

ACID is an acronym representing the four key properties of a reliable database transaction: Atomicity (all or nothing), Consistency (valid state transitions), Isolation (independent execution), and Durability (permanent storage). Since all listed options are parts of ACID, 'All of the above' is correct.

ACID properties are fundamental to database transactions. Atomicity ensures all operations in a transaction succeed or fail together. Consistency maintains data validity, Isolation prevents concurrent transaction interference, and Durability guarantees committed data persists even after system failure.

Oil of Vitriol is the historical common name for sulphuric acid (H2SO4). The name comes from the vitriol (sulfate) minerals used to produce it. Hydrochloric acid is muriatic acid, carbolic acid is phenol, and acetic acid is found in vinegar.

Carbonic acid (H2CO3) is formed when carbon dioxide is dissolved in water under pressure, creating the characteristic fizz in soft drinks. HCL and H2SO4 are strong, corrosive mineral acids, and H2No3 is an incorrect chemical formula for nitric acid (HNO3).

ACID in database systems represents the four key properties that guarantee reliable transaction processing: Atomicity (all-or-nothing execution), Consistency (database remains valid), Isolation (transactions don't interfere), and Durability (committed data persists). Option A correctly uses the consistent noun form 'Durability' rather than 'Durable'.

H2SO4 is the chemical formula for sulphuric acid, a strong mineral acid. The 'H' represents hydrogen (2 atoms), 'S' represents sulphur (1 atom), and 'O4' represents oxygen (4 atoms). Nitric acid is HNO3 and hydrochloric acid is HCl.

H2SO4 is the chemical formula for Sulphuric Acid (also spelled Sulfuric Acid). It is a strong diprotic acid with central sulfur atom bonded to two hydroxyl groups (OH) and two oxygen atoms via double bonds. Nitric Acid is HNO3, and Hydrochloric Acid (misspelled as 'Hydrocloric' in the option) is HCl.

Vinegar is essentially impure dilute acetic acid, containing around 5-8% acetic acid in water along with other compounds that give it its characteristic flavor and aroma. It's not pure acetic acid, and it's definitely not methanoic (formic) acid. Option C correctly captures both the dilute and impure nature of vinegar.

HCl is the chemical formula for hydrogen chloride, which in aqueous solution forms hydrochloric acid, a strong acid. Chlorine is Cl2, Chloroform is CHCl3, and Sulphuric Acid is H2SO4. Hydrochloric acid is found in gastric juice and used industrially.

H2S represents hydrogen sulfide, which when dissolved in water forms a weak acid traditionally called hydrosulfuric acid. While technically H2S gas itself is hydrogen sulfide, in quiz contexts 'HydroSulfuric Acid' is the expected answer. Sulfuric acid is H2SO4, hydrochloric acid is HCl, and chloric acid is HClO3.

Hydrazoic acid has the chemical formula HN3 (or N3H as written in options). It's a highly explosive and toxic compound consisting of a linear chain of three nitrogen atoms bonded to hydrogen. The formula N3H correctly represents this structure.

Sulfuric acid (H2SO4) is called the 'King of chemicals' due to its vast industrial applications, from fertilizers to chemical synthesis. It's the most-produced industrial chemical worldwide.

Sulphuric acid (H2SO4) is called the 'King of Chemicals' due to its enormous industrial importance - it's used in fertilizer production, petroleum refining, and chemical manufacturing. It has the highest production volume of any industrial chemical worldwide.

Sulfuric acid (H2SO4) is called the 'King of chemicals' because of its immense industrial importance and widespread use in manufacturing. It's the most-produced industrial chemical worldwide and a key indicator of a country's industrial development.

Sulphuric acid (H2SO4) is called the 'King of chemicals' because of its immense industrial importance and widespread use. It has the highest production volume among all chemicals globally. Hydrochloric acid, hydrogen sulfide, and nitric acid are important chemicals but don't have this title.