On heating, the acetone starts boiling first and converted into vapours.

(i) The product A₂B shows the properties of substance A and B. (ii) The product will always have a fixed composition. (iii) The product so formed cannot be classified as a compound. (iv) The product so formed is an element.

I. Dead cells of varying shapes II. Large nucleus with vacuole III. Large nucleus without vacuole IV. No intercellular spaces Codes

Meristematic cells do not show the property of storage of food. Rest of the statements are characters of meristem.

The displacement is the shortest path between initial and final position. Displacement = AC = (Under Root) √AB₂ + BC₂ = (Under Root) √15₂ + 20₂ = 25 m