Acids and Bases

Amphoteric oxides are those which react with both bases and acids.

Yes, both are incorrect. Incorrect statement: Ni(0), Cu(I), Hg(II) and Pt(II) are soft acids.

Incorrect statement: Li(I), Ca(II), Al(III) and Si(IV) are hard acids.

This question asks for the chemical name of sulphuric acid (H2SO4). The correct answer is B - sulphuric acid itself, as it's asking for the name, not a different compound. Option A (sodium bicarbonate) is baking soda, and option C (sodium carbonate) is washing soda. Option D is incorrect since B is valid.

Aspirin's chemical name is Acetyl Salicyclic Acid (Acetylsalicylic acid). It is a widely used pain reliever, fever reducer, and anti-inflammatory medication. Acetyl Acetate and Cobalt Oxide are different compounds, and 'Acetylic Acid' appears to be a misspelling.

This is the correct option. Sulphuric acid and nitric acid dissolve in rainwater and fall to the Earth in the form of acid rain.

Sulfuric acid is the electrolyte in lead-acid batteries. The chemical reaction between lead dioxide and sponge lead plates with sulfuric acid generates electrical energy. Hydrochloric and nitric acids would react differently and damage the battery.

 oxalo acetic acid 

Weak bases do not ionise completely in an aqueous solution. Ammonium hydroxide also does not completely ionise in the medium. Hence, it is a weak base.

Strong acids are those which ionis completely in the medium. Because of complete ionisation they give ions only in the medium.e.g.HCl, HNO₃, H₂SO₄ etc.

H₃O⁺ is responsible for the  characteristic properties of an acid . The hydronium ion is a hydrogen ion in association with a molecule of water. In a water molecule, the oxygen atom has two pairs of unshared electrons in its outermost shell. The hydrogen ion does not have any electron in its valence shell. Hence, it shares a pair of electrons from the oxygen atom by means of co-ordinate co-valency to form a hydronium ion.

An acid salt is derived from an acid and base in which only a part of the hydrogen is replaced by a basic radical.In KHSO₄  only one H of Sulphuric acid has been replaced by K⁺ of KOH. Hence, it is an acid salt.

Arrhenius acid is a substance that when added to water it increases the concentration of H¹⁺ ions. So, HCl is an Arrhenius acid because when it is  added to water it  increases the concentration of H¹⁺ ions. 

In 1923, J.N.Bronsted and T.M.Lowry proposed a theory known as the Bronsted-Lowry proton transfer theory. According to this concept, any hydrogen species containing (a molecule, a cation or an anion), which is capable of donating one or more protons to any other substance, is called an acid. Acids classified on the basis of this concept are termed as Bronsted acids .

In a neutralisation reaction an acid gives H⁺ which combines with existing H₂O molecule and forms H₃O+.