Atoms and Molecules — Science STD 9 — Question

Displacement is a __________ quantity whereas distance is a Vector quantity. (Vector, Scalar, Constant)

Cells of cork contain a chemical called _________. (Suberin, Lignin, Pectin)

In higher plants, food is conducted by _________. (Phloem, Xylem, Parenchyma)

The function of mitochondria is ________ production. (Energy, Protein, Lipid)

Distance and speed are __________ quantities. (Scalar, Vector, Derived)

Forces in a Newton’s third law pair have equal Magnitude, but act in opposite __________. (directions, Mass, Velocity)

The maximum number of electrons that can be accommodated in L shell are __________.

Mrigal belongs to the genus __________. (Ray-finned fish, Cirrhinus, Rohu)

The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ________. (Condensation, Freezing, Evaporation)