Schottky defect is shown by ionic compounds having small difference in the size of cations and anions. Out of KCl and AgCl, it is shown by KCl, due to comparable sizes of K⁺ and Cl^– ions.

When zinc oxide is heated, it loses oxygen and there is an excess of Zn²⁺ ions. The number of excess Zn²⁺ ions trapped in the interstitial sites is equal to the number of electrons trapped in neighbouring interstitial sites. The presence of free electrons gives rise to the enhanced electrical conductivity and yellow colour to the crystal.

(CH₃)₃N >C₂H₅NH₂> C₆H₅NH₂

Sol is formed when a solid is dispersed in a liquid. Paint is an example of sol.

Out of Chlorobenzene and Cyclohexyl chloride, Cyclohexyl chloride is more reactive towards nucleophilic substitution reaction due to partial double bond character of C-Cl bond in Chlorobenzene which is difficult to break. Also chlorobenzene is resonance stablised. 

Starch is a polymer of α- glucose whereas cellulose is a polymer of β- glucose.

The products of hydrolysis of DNA are as follows:

2-deoxyribose + nitrogen containing heterocyclic base + phosphoric acid

(a)Chlorine gas is used in the preparation of poisonous gases such as phosgene (COCl₂) and tear gas (CCl₃NO₂).

(b) When ammonia reacts with Cu²⁺ solution, blue coloured solution is formed due to the formation of a complex.

(a) Due to increase in pressure caused by steam inside the cooker, the boiling point of water increases. Therefore, cooking is faster in pressure cooker than in cooking pan.

(b) When RBCs are placed in saline which is a hypertonic salt solution, water moves from inside the cell to the outside by osmosis that causes the cells to shrink. But when RBCs are placed in distilled water which is a hypotonic solution, water moves from outside of the cell to the inside and the cell swells.