number of atoms in a molecule is called

• mole

• tonicity

• atomicity

• atomic number

triatomic molecule from the following is

• oxygen gas

• water

• hydrogen gas

• chlorine gas

which of the following are diatomic molecules

• hydrogen gas

• oxygen gas

• ozone gas

• nitrogen gas

which of the following are triatomic

• water

• carbon dioxide

• ozone

• sodium

it is the force of attraction between the atoms to hold them together as a stable molecule

• james bond

• physical bond

• chemical bond

• none of the above

which of the following are primary bonds?

• ionic bond

• covalent bond

• hydrogen bond

• co-ordinate bond

which of the following is a secondary bond?

• covalent bond

• co-ordinate bond

• hydrogen bond

• metallic bond

van der waal's force of attraction is a secondary bond

• true

• false

chemical properties of compounds depend upon

• primary bonds

• secondary bonds

• both

• none

physical properties and mechanical strength depends on

• primary bonds

• secondary bonds

• both

• none