Force and Laws of Motion — Science STD 9 — Question

The maximum number of electrons that can go into the M shell is __________. (18, 8, 32)

The elements which are sonorous are called ________. (Metals, Non-metals, Metalloids)

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

In water, the proportion of oxygen and hydrogen is _________ by mass. (1:8, 2:1, 1:2)

Fibres are absent in __________, a type of connective tissue. (Blood, Bone, Ligaments)

In water, the proportion of oxygen and hydrogen is _________ by mass.

The ability of a body to do work is called Energy. The ability of a body to do work because of its motion is called __________. (Energy, Work, kinetic Energy)

The separation of liquids by fractional distillation is based o the difference in their __________.

A sulphide ion has negative charge because it contains less ____________ than ____________.