Question

To write the chemical formulae, one must know the valency of the element. State whether the statement is True/False.

• A. True
• B. False

Answer 1

The correct option is A

True

The statement is correct. Chemical formulae is the number of atoms of each element present in one molecule of the compound and each atom will combine with other atoms according to its valency because valency is the combining capacity of an atom(number of transferable electrons). If an atom has valency of 2 it will combine with two other atoms to attain stability.