Question

1. which of the following chemical formulas contains the greatest number of elements? hno2 alcl3 ch4 s8

Explanation:

Step1: Count elements in HNO₂

HNO₂ has 3 elements: hydrogen (H), nitrogen (N), oxygen (O).

Step2: Count elements in AlCl₃

AlCl₃ has 2 elements: aluminum (Al) and chlorine (Cl).

Step3: Count elements in CH₄

CH₄ has 2 elements: carbon (C) and hydrogen (H).

Step4: Count elements in S₈

S₈ has 1 element: sulfur (S).

Answer:

HNO₂