Acids and Bases

Sulphuric acid (H2SO4) is called the 'King of chemicals' because of its enormous industrial importance - it's used in fertilizer production, petroleum refining, chemical manufacturing, and more. It's the most-produced industrial chemical worldwide by volume.

Sulphuric acid (H2SO4) is called the 'King of chemicals' because of its enormous industrial importance - it's used in fertilizer production, petroleum refining, chemical manufacturing, and more. It's the most-produced industrial chemical worldwide by volume.

Al2(SO4)3 is Aluminum sulfate - Al is Aluminum (not Potassium), and SO4 is the sulfate ion. The formula shows 2 aluminum ions balancing 3 sulfate ions. Options B and D are incorrect chemical names, and option A misidentifies the metal.

Sulphuric Acid is the correct answer because lead-acid batteries (used in automobiles) use dilute sulfuric acid as the electrolyte. The acid reacts with lead plates to produce electrical energy through chemical reactions. Hydrochloric, acetic, and nitric acids are not used in lead storage batteries.

Lead-acid batteries, commonly used in automobiles and other applications, use sulfuric acid (H2SO4) as the electrolyte. This strong acid facilitates the chemical reactions between lead plates and lead dioxide plates, storing and releasing electrical energy through reversible electrochemical reactions.

FSO2(OH) is fluorosulfuric acid, one of the strongest known superacids. The name combines 'fluoro-' (fluorine attached) with 'sulfuric acid'. Options A and C incorrectly use 'Fluric/Flurous' (misspellings), while option D incorrectly orders the components as 'Sulphur fluric acid' rather than the correct systematic name.

Carboxylic acids contain the carboxyl functional group, which is -COOH (carbonyl group C=O combined with hydroxyl group -OH), making option C correct. The -COOH group is the defining characteristic of carboxylic acids. Option A (-CHO) is an aldehyde, B (-OH) is an alcohol, and D (-NH2) is an amine.

Phosphorus's symbol is simply P, like several other nonmetals (C, N, O, S, etc.). Option A (Ph) is not the official symbol. Po is Polonium, and Pr is Praseodymium. Common prefixes don't always match symbols.

Sulphuric acid was historically called 'Oil of Vitriol' and is commonly found in car batteries. It earned this name due to its oily appearance and the Latin word 'vitriol' meaning glassy or corrosive substances.

Hydrochloric acid is represented by HCl, consisting of hydrogen and chlorine. In aqueous solution, it dissociates into H+ and Cl- ions, making it a strong acid commonly used in laboratories and industrial processes.

Among the given options, only HCl (hydrochloric acid) is an acid. H2O is water (neutral), Zn is zinc (a metal), and 'all of these' is incorrect because water is not an acid. Acids are substances that donate protons (H+) in solution, and HCl is a classic example of a strong acid.

Aqua regia is a mixture of concentrated nitric acid and hydrochloric acid in a 1:3 ratio, historically called "nitrohydrochloric acid." It's one of the few substances that can dissolve gold and platinum. The name means "royal water" in Latin. Phosphoric acid, pure hydrochloric acid, and dilute sulfuric acid are different chemical substances.

Sulfuric acid (H2SO4) is the acid used in lead-acid car batteries and was historically known as 'Oil of Vitriol'. It's a strong diprotic acid. Acetic acid is vinegar, hydrochloric acid is stomach acid and muriatic acid, and nitric acid is used in fertilizers and explosives - none are used in car batteries.

Red ants inject formic acid (methanoic acid, HCOOH) when they sting, causing the characteristic burning sensation. Formic acid is named after the Latin word for ant, 'formica.' Ascorbic acid is vitamin C, glutamic acid is an amino acid involved in umami taste, and hydrochloric acid is found in gastric juice.