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

C₆H₅CH₂NH₂ < C₆H₅NHCH₃ < 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. 

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.

(a) Interaction between ethanol and acetone is weaker than the interaction between pure ethanol or acetone. Therefore, a decrease is observed on mixing ethanol and acetone.

(b) On adding non-volatile solute like KCl to water, the vapour pressure of solution decreases. Therefore, potassium chloride solution freezes at a lower temperature than water.