Question

Which of the following is a chemical formula of zinc oxide?

• A. ZnO
• B. Zn₂O
• C. ZO
• D. Z₂O

Answer 1

The correct option is A

ZnO

The explanation for the correct answer- (A) ZnO

The symbol for the element Zinc is Zn and for oxygen is O.

following the criss-cross method, the chemical formula for Zinc oxide is ZnO.

The explanation for the incorrect answer-

(B) Zn₂0 - The formula does not satisfy the valency of both elements.

(C) ZO - The symbol of zinc is incorrect.

(D) Z₂O - The symbol of zinc is incorrect, and does not satisfy the valency of both elements.

Hence, option (A) is correct. ZnO is the chemical formula of zinc oxide.