Explanation

Acid reacts with alkali → Neutralization Reaction  

  - Acid + Base (alkali) → Salt + Water  

  - Example: HCl + NaOH → NaCl + H₂O  

  - It’s an exothermic reaction (releases heat).

Explanation

Tannic acid is found in plant materials

It is a type of tannin (a polyphenol)

Beverages: Tea, coffee, and wine are common sources. 

Fruits: Berries like cranberries and blueberries, as well as grapes, apricots, and peaches. 

Nuts: Some acorns, hazelnuts, walnuts, and almonds contain tannins. 

Other Foods: Legumes, chocolate, and even spices like cinnamon can contain tannins. 

Explanation

. Catalyst to convert SO₂ to SO₃ is Vanadium Pentoxide (V₂O₅)  

  - Used in the Contact Process for manufacturing sulfuric acid.  

  - Speeds up the reaction: 2SO₂ + O₂ → 2SO₃

Explanation

pH scale: 0 to 14  

pH < 7 = Acidic

pH > 7 = Basic

pH = 7 = Neutral  

  - pH 3 means it’s a strong acid, like HCl or vinegar.

Explanation

Formula:  

pH = -log[H⁺]  

[H⁺] = 0.01 = 10⁻²  

pH = -log(10⁻²) = 2 

Explanation

Number of molecules = moles × Avogadro’s number  

= 0.5 × 6.022 × 10²³  

= 3.011 × 10²³ molecules 

Explanation

The covalent bond between glucose and fructose, forming sucrose, is called a glycosidic bond, specifically a 1-2 glycosidic linkage.

This bond is formed through a dehydration reaction where a water molecule is removed when the two monosaccharides join. 

Explanation

Rutherford’s gold foil experiment (1909) showed that atoms have a small, dense, positively charged center.

This center is called the nucleus, where most of the atom’s mass is concentrated.

Explanation

Explanation

Argon was discovered in 1894 by Lord Rayleigh and Sir William Ramsay.

It is a noble gas, chemically inert and found in the atmosphere.