___________ is a substance made up of numerous similar molecules made up of atoms from different elements and kept together by chemical bonds.

Brownian motion is seen in  _______

The atomicity of a molecule is the total number of atoms present in it.​
Sulphuric acid $\left({\text{H}}_2{\text{SO}}_4\right)$ has one sulphur atom, two hydrogen atoms, and four oxygen atoms in it. Hence, a total of $7$ atoms are present.​ Therefore, the atomicity of ${\text{H}}_2{\text{SO}}_4$ is seven.​

Atomicity of H₂SO₄ is …………….

The properties of compounds, as compared to properties of their constituents, are

Water is broken down into small units by passing it through____

When magnesium element is burnt with oxygen, it makes a compound called

Which of the following is true when sulfur powder and iron fillings are combined at room temperature?

Which of the following mixtures is not homogeneous?

A colloid in which the dispersed phase is liquid and dispersion medium is a gas is called __________.

Choose the element from the list below:

An atom which has positive or negative charge is called____

Elements are represented by symbols and molecules by …………….

The molecule having atomicity of 4 is

Which of the following describes the traits of both compounds and mixtures?

C, H and O combine to make

Chalk piece consists of