Question

Classify the following molecules as di, tri, tetra, penta and hexa atomic molecules:H2, P4, SF4, SO2, PCl3, CH3OH, PCl5, HCl

Answer 1

Answer:

• 1-di
• tetra
• tetra
• di
• tri
• tri
• penta
• one molecule

Answer 2

Molecules:

$\bold{H_2}$ = Diatomic moecule

$\bold{P_4}$ = Tetra-atomic molecule

$\bold{SF_4}$ = Penta-atmic molecule

$\bold{SO_2}$ = Triatomic molecule

$\bold{PCl_3}$ = Tetra-atomic molecule

$\bold{CH_3OH}$ = Hexa-atomic molecule

$\bold{PCl_5}$ = Hexa-atomic molecule

$\bold{HCl}$ = Diatomic molecule

Explanation:

• An atom is a minute particle which combines with other atom to form a bigger particle called molecule. Atoms constitute to form matter (smallest to biggest).
• According to number of atoms present in the molecule, an atom is named. For example, if there is one atom, then it is called mono-atomic molecule.
• Likewise, if there are two atoms, then the molecule is called diatomic molecule; if three atoms, then it is triatomic molecule; is four atoms, then tetra-atomic molecule; if five atoms, then it is penta-atomic molecule; if six atom, then it is hexa-atomic molecules, and so on.